Windows Analysis Report Confirming - Aviso de pago.exe
Overview
General Information
Detection
Score: | 60 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Classification
Process Tree |
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Malware Configuration |
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Threatname: GuLoader |
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{"Payload URL": "https://drive.google.com/uc?export=download"}
Yara Overview |
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Memory Dumps |
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Source | Rule | Description | Author | Strings |
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JoeSecurity_GuLoader_2 | Yara detected GuLoader | Joe Security |
Sigma Overview |
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No Sigma rule has matched |
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Jbx Signature Overview |
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Click to jump to signature section
AV Detection: |
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Found malware configuration | Show sources |
Source: | Malware Configuration Extractor: |
Source: | Static PE information: |
Networking: |
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C2 URLs / IPs found in malware configuration | Show sources |
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Data Obfuscation: |
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Yara detected GuLoader | Show sources |
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Mitre Att&ck Matrix |
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Initial Access | Execution | Persistence | Privilege Escalation | Defense Evasion | Credential Access | Discovery | Lateral Movement | Collection | Exfiltration | Command and Control | Network Effects | Remote Service Effects | Impact |
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Valid Accounts | Windows Management Instrumentation | Path Interception | Process Injection2 | Process Injection2 | Input Capture1 | Security Software Discovery1 | Remote Services | Input Capture1 | Exfiltration Over Other Network Medium | Encrypted Channel1 | Eavesdrop on Insecure Network Communication | Remotely Track Device Without Authorization | Modify System Partition |
Default Accounts | Scheduled Task/Job | Boot or Logon Initialization Scripts | Boot or Logon Initialization Scripts | Obfuscated Files or Information1 | LSASS Memory | Process Discovery1 | Remote Desktop Protocol | Archive Collected Data1 | Exfiltration Over Bluetooth | Application Layer Protocol1 | Exploit SS7 to Redirect Phone Calls/SMS | Remotely Wipe Data Without Authorization | Device Lockout |
Domain Accounts | At (Linux) | Logon Script (Windows) | Logon Script (Windows) | Obfuscated Files or Information | Security Account Manager | System Information Discovery1 | SMB/Windows Admin Shares | Data from Network Shared Drive | Automated Exfiltration | Steganography | Exploit SS7 to Track Device Location | Obtain Device Cloud Backups | Delete Device Data |
Behavior Graph |
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Screenshots |
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Thumbnails
This section contains all screenshots as thumbnails, including those not shown in the slideshow.
Antivirus, Machine Learning and Genetic Malware Detection |
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Initial Sample |
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No Antivirus matches |
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Dropped Files |
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No Antivirus matches |
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Unpacked PE Files |
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No Antivirus matches |
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Domains |
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No Antivirus matches |
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URLs |
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No Antivirus matches |
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Domains and IPs |
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General Information |
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Joe Sandbox Version: | 34.0.0 Boulder Opal |
Analysis ID: | 531043 |
Start date: | 30.11.2021 |
Start time: | 10:19:32 |
Joe Sandbox Product: | CloudBasic |
Overall analysis duration: | 0h 7m 50s |
Hypervisor based Inspection enabled: | false |
Report type: | light |
Sample file name: | Confirming - Aviso de pago.exe |
Cookbook file name: | default.jbs |
Analysis system description: | Windows 10 64 bit v1803 with Office Professional Plus 2016, Chrome 85, IE 11, Adobe Reader DC 19, Java 8 Update 211 |
Number of analysed new started processes analysed: | 17 |
Number of new started drivers analysed: | 0 |
Number of existing processes analysed: | 0 |
Number of existing drivers analysed: | 0 |
Number of injected processes analysed: | 0 |
Technologies: |
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Analysis Mode: | default |
Analysis stop reason: | Timeout |
Detection: | MAL |
Classification: | mal60.troj.winEXE@2/1@0/0 |
EGA Information: |
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HDC Information: |
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HCA Information: | Failed |
Cookbook Comments: |
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Warnings: | Show All
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Simulations |
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Behavior and APIs |
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No simulations |
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Joe Sandbox View / Context |
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Created / dropped Files |
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Process: | C:\Users\user\Desktop\Confirming - Aviso de pago.exe |
File Type: | |
Category: | dropped |
Size (bytes): | 16384 |
Entropy (8bit): | 1.9866006611106688 |
Encrypted: | false |
SSDEEP: | 96:jWpahLKAycVxc4LlvnffSIPW0wLzzj1ylDHn3Rs:KMhLKCxV5vnffI0wIdHBs |
MD5: | A256BBA112F7FA34FE9E19ED07D0DF83 |
SHA1: | 3E86ADD7C0890C55E8F22334A3E26134D7AB1EE8 |
SHA-256: | AB9F6744C55428A62F4696BC1779409A30420D0983EDD5536A0D280DF5EE7FE0 |
SHA-512: | 9E762DFE82611778602E8BF19439E48AF7278D3D9399FF44666EB8A196206F4B1B50B9B623710B138BD7A7E9C1E0A05BE85CE6FB7B0F208C9664669297C416EA |
Malicious: | false |
Reputation: | moderate, very likely benign file |
Preview: |
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Static File Info |
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General | |
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File type: | |
Entropy (8bit): | 5.072456251172297 |
TrID: |
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File name: | Confirming - Aviso de pago.exe |
File size: | 155648 |
MD5: | 660a906018931ad7d39aaaf72b0b8e58 |
SHA1: | adc917568cdfb8dea81c2f5793f69720609ee086 |
SHA256: | 520c53fa3cc5121f1a8ab6600e9ee4cbe40d0f61712a4fc062c9db02953f5420 |
SHA512: | 614ce1f2f1a0e0933c732a6bd41173ddb54862347947182c71a95f04def137802cc90d6583a791db69e4f9305ff2e1ed96edbccbf170d8eb6f10cba3286e14c4 |
SSDEEP: | 1536:dafJffdYUfpeAxZcswCVWHSBrO4efc1SAnGlrWAEEKLBl5l1TM03fJffpfJff:YfJffnMw7BrO4AMS8pOKb3fJffpfJff |
File Content Preview: | MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......O.......................D.......=.......Rich............PE..L...d..V.....................P............... ....@................ |
File Icon |
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Icon Hash: | 70ecccaececc71e2 |
Static PE Info |
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General | |
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Entrypoint: | 0x4015a8 |
Entrypoint Section: | .text |
Digitally signed: | false |
Imagebase: | 0x400000 |
Subsystem: | windows gui |
Image File Characteristics: | LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED |
DLL Characteristics: | |
Time Stamp: | 0x56E5BC64 [Sun Mar 13 19:15:48 2016 UTC] |
TLS Callbacks: | |
CLR (.Net) Version: | |
OS Version Major: | 4 |
OS Version Minor: | 0 |
File Version Major: | 4 |
File Version Minor: | 0 |
Subsystem Version Major: | 4 |
Subsystem Version Minor: | 0 |
Import Hash: | 458ac857eb15a6ebaad7748f2f663dae |
Entrypoint Preview |
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Instruction |
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push 00402DD8h |
call 00007FBC38DCC2C5h |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
xor byte ptr [eax], al |
add byte ptr [eax], al |
dec eax |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [edx], dl |
retn 5C60h |
insb |
or ah, ah |
dec esi |
mov ecx, 217C0FE5h |
mov edx, 00008AAEh |
add byte ptr [eax], al |
add byte ptr [eax], al |
add dword ptr [eax], eax |
add byte ptr [eax], al |
and byte ptr [41502220h], bh |
push esi |
inc ebp |
dec esp |
push ebx |
inc ebp |
push ebx |
dec edi |
push esi |
inc ebp |
push edx |
push ebx |
dec ecx |
inc edi |
push esp |
inc ebp |
push edx |
add byte ptr [ecx+65h], ch |
outsb |
je 00007FBC38DCC31Ah |
imul eax, dword ptr [eax], FF000000h |
int3 |
xor dword ptr [eax], eax |
add eax, B5AE47A2h |
or byte ptr [eax-3849B9F2h], 00000015h |
dec esp |
mov al, ECh |
xor ebx, eax |
mov bh, 18h |
sbb dword ptr [ecx-6CB9C804h], edi |
mov word ptr [ebp+1BF45548h], gs |
dec esi |
cmp cl, byte ptr [edi-53h] |
xor ebx, dword ptr [ecx-48EE309Ah] |
or al, 00h |
stosb |
add byte ptr [eax-2Dh], ah |
xchg eax, ebx |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
jnbe 00007FBC38DCC2E8h |
add byte ptr [eax], al |
lea edx, dword ptr [08000000h] |
add byte ptr [ebx+65h], al |
insb |
bound esp, dword ptr [ebp+72h] |
add byte ptr [00000B01h], cl |
Data Directories |
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Name | Virtual Address | Virtual Size | Is in Section |
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IMAGE_DIRECTORY_ENTRY_EXPORT | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_IMPORT | 0x213c4 | 0x28 | .text |
IMAGE_DIRECTORY_ENTRY_RESOURCE | 0x24000 | 0x2f4c | .rsrc |
IMAGE_DIRECTORY_ENTRY_EXCEPTION | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_SECURITY | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_BASERELOC | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_DEBUG | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_COPYRIGHT | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_GLOBALPTR | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_TLS | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT | 0x228 | 0x20 | |
IMAGE_DIRECTORY_ENTRY_IAT | 0x1000 | 0x194 | .text |
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_RESERVED | 0x0 | 0x0 |
Sections |
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Name | Virtual Address | Virtual Size | Raw Size | Xored PE | ZLIB Complexity | File Type | Entropy | Characteristics |
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.text | 0x1000 | 0x20998 | 0x21000 | False | 0.357577237216 | data | 5.23763922867 | IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ |
.data | 0x22000 | 0x1250 | 0x1000 | False | 0.00634765625 | data | 0.0 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_WRITE, IMAGE_SCN_MEM_READ |
.rsrc | 0x24000 | 0x2f4c | 0x3000 | False | 0.232991536458 | data | 4.21003728308 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ |
Resources |
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Name | RVA | Size | Type | Language | Country |
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CUSTOM | 0x259b2 | 0x1542 | data | English | United States |
RT_ICON | 0x2490a | 0x10a8 | data | ||
RT_ICON | 0x244a2 | 0x468 | GLS_BINARY_LSB_FIRST | ||
RT_STRING | 0x26ef4 | 0x58 | data | English | United States |
RT_GROUP_ICON | 0x24480 | 0x22 | data | ||
RT_VERSION | 0x241c0 | 0x2c0 | data | English | United States |
Imports |
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DLL | Import |
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MSVBVM60.DLL | __vbaVarTstGt, _CIcos, _adj_fptan, __vbaVarMove, __vbaFreeVar, __vbaAryMove, __vbaStrVarMove, __vbaFreeVarList, __vbaVarIdiv, _adj_fdiv_m64, __vbaFreeObjList, _adj_fprem1, __vbaStrCat, __vbaSetSystemError, __vbaHresultCheckObj, _adj_fdiv_m32, __vbaAryVar, __vbaAryDestruct, __vbaObjSet, __vbaOnError, _adj_fdiv_m16i, __vbaObjSetAddref, _adj_fdivr_m16i, __vbaFpR8, _CIsin, __vbaChkstk, EVENT_SINK_AddRef, __vbaStrCmp, __vbaVarTstEq, __vbaAryConstruct2, __vbaPrintObj, DllFunctionCall, _adj_fpatan, __vbaLateIdCallLd, __vbaRedim, EVENT_SINK_Release, _CIsqrt, EVENT_SINK_QueryInterface, __vbaExceptHandler, _adj_fprem, _adj_fdivr_m64, __vbaFPException, __vbaUbound, _CIlog, __vbaNew2, __vbaVar2Vec, _adj_fdiv_m32i, _adj_fdivr_m32i, __vbaStrCopy, __vbaFreeStrList, _adj_fdivr_m32, _adj_fdiv_r, __vbaVarTstNe, __vbaI4Var, __vbaStrToAnsi, __vbaVarDup, _CIatan, __vbaStrMove, __vbaAryCopy, _allmul, _CItan, _CIexp, __vbaFreeObj, __vbaFreeStr |
Version Infos |
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Description | Data |
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Translation | 0x0409 0x04b0 |
LegalCopyright | Corps |
InternalName | Grammatikklassen |
FileVersion | 1.00 |
CompanyName | Corps |
LegalTrademarks | Corps |
ProductName | Corps |
ProductVersion | 1.00 |
FileDescription | Corps |
OriginalFilename | Grammatikklassen.exe |
Possible Origin |
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Language of compilation system | Country where language is spoken | Map |
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English | United States |
Network Behavior |
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No network behavior found |
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Code Manipulations |
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Statistics |
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Behavior |
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Click to jump to process
System Behavior |
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General |
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Start time: | 10:20:30 |
Start date: | 30/11/2021 |
Path: | C:\Users\user\Desktop\Confirming - Aviso de pago.exe |
Wow64 process (32bit): | true |
Commandline: | |
Imagebase: | 0x400000 |
File size: | 155648 bytes |
MD5 hash: | 660A906018931AD7D39AAAF72B0B8E58 |
Has elevated privileges: | true |
Has administrator privileges: | true |
Programmed in: | Visual Basic |
Yara matches: |
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Reputation: | low |
General |
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Start time: | 10:20:31 |
Start date: | 30/11/2021 |
Path: | C:\Windows\System32\conhost.exe |
Wow64 process (32bit): | false |
Commandline: | |
Imagebase: | 0x7ff724c50000 |
File size: | 625664 bytes |
MD5 hash: | EA777DEEA782E8B4D7C7C33BBF8A4496 |
Has elevated privileges: | true |
Has administrator privileges: | true |
Programmed in: | C, C++ or other language |
Reputation: | high |
Disassembly |
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Code Analysis |
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