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Windows
Analysis Report
invoice.exe
Overview
General Information
Detection
FormBook
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Multi AV Scanner detection for submitted file
Yara detected FormBook
Malicious sample detected (through community Yara rule)
Yara detected AntiVM3
System process connects to network (likely due to code injection or exploit)
Snort IDS alert for network traffic
Sample uses process hollowing technique
Tries to steal Mail credentials (via file / registry access)
Maps a DLL or memory area into another process
Initial sample is a PE file and has a suspicious name
Writes to foreign memory regions
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Performs DNS queries to domains with low reputation
Injects a PE file into a foreign processes
Yara detected Generic Downloader
Queues an APC in another process (thread injection)
.NET source code contains very large strings
Modifies the context of a thread in another process (thread injection)
C2 URLs / IPs found in malware configuration
Tries to harvest and steal browser information (history, passwords, etc)
Uses 32bit PE files
Queries the volume information (name, serial number etc) of a device
Yara signature match
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Internet Provider seen in connection with other malware
Detected potential crypto function
Found potential string decryption / allocating functions
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to call native functions
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Contains functionality for execution timing, often used to detect debuggers
Contains long sleeps (>= 3 min)
Enables debug privileges
Creates a DirectInput object (often for capturing keystrokes)
Found inlined nop instructions (likely shell or obfuscated code)
Sample file is different than original file name gathered from version info
Tries to load missing DLLs
Contains functionality to read the PEB
Uses a known web browser user agent for HTTP communication
Checks if the current process is being debugged
Found large amount of non-executed APIs
Creates a process in suspended mode (likely to inject code)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Classification
- System is w10x64
- invoice.exe (PID: 1784 cmdline:
C:\Users\u ser\Deskto p\invoice. exe MD5: 6CB9C745DFA97E0E9C7F3C2CDEFEA36E) - RegSvcs.exe (PID: 5440 cmdline:
{path} MD5: 2867A3817C9245F7CF518524DFD18F28) - explorer.exe (PID: 3452 cmdline:
C:\Windows \Explorer. EXE MD5: AD5296B280E8F522A8A897C96BAB0E1D) - msiexec.exe (PID: 5196 cmdline:
C:\Windows \SysWOW64\ msiexec.ex e MD5: 12C17B5A5C2A7B97342C362CA467E9A2)
- cleanup
{"C2 list": ["www.hotelarta.cloud/dj6o/"], "decoy": ["eHTcR+KSbIHKrEJYcaqomJrw", "d4CQy4B84xPiXuPwHUtF", "8eIkbHEq+BPxberwHUtF", "m0+kGJZPG1H1jgngcA==", "AMbXEsJxX4/J80MD", "cxBd6axquGelQQc=", "J9URjF0q/TbJ80MD", "HxxYujs6bp7dberwHUtF", "VhwjWCuW1Xau", "Hs4ZrXYwBycFVX7hJpekXd1oRg==", "XyAqZOXgWECQBQ==", "H+HaBrNXMlQ5j+GkDTwf7dEalRSG8g==", "Kvj6PwPvL2f1jgngcA==", "q3F0mzHxjbyi", "G/sniBrf1waZ08/yTxyN8qLm", "9uD0ZBYgb5ZiuP3wHUtF", "Ndkqiyj14RhyZziD6WwV4O8=", "PuY9wEs6hMAOTUs2mUCtdjzUeRyb+A==", "PwsHXAKokKjJ80MD", "xa4YnG9AI0WKthDfFO0=", "MQ8MH62d8yYM76ur+PSq1rv4", "3bzBJcCw7xdiv6jgTRiI8E6SoqA=", "gllski02plO4hezwHUtF", "fFupcJ7vWECQBQ==", "t6rT74IzHwBjQg/PFfJ+XkwUqbyJ5R0=", "56Sm6qNmn1DQ0GlhvXvBC8S/VqKP", "WUlz+MBsMUUotVBYcaqomJrw", "byiB84SNALIdtosIbQ==", "Tl6H0INUQnheJvdAtTwA8vY=", "AqzubjoPnUI=", "pjxDfDsybJ4Evov1Zw==", "MAQDK8y6Gb0I8vGtGwxpvjK2JAGH", "UO5BqmVqz165KziylGwV4O8=", "47b4ZydnxKzyMwE=", "Bf7i1stH8J4Hvov1Zw==", "tK7qfS7XseFCG6OY3GwV4O8=", "p7cCavm6qOBKr71GbhlsLg==", "0bXQHb94wGTx++0ubw==", "t46Y0lNYob2TEONj2nnu4vA=", "gkCQBL5zSXzPIzOm/2M+jjzEWfA+cYlv5g==", "Kzh59Yh31ILszGVWratKal6xHAOH", "BLr9ZQYBWbxKmbIgLtHALA==", "VlyjEKNUSG6hcUoFandY", "H/INXiD4y/bdLYKCq/LdOw==", "f01NhTwlcqR+CogrfHrHtan3", "V6baC439Psa1", "t6uu52heoTqUcvDwHUtF", "bXDKLuDkj/MmnzHyQ1Qp7b2/VqKP", "kFa9Hr2GVXzP1qfEwpH66PI=", "hFlcmTAgXE26HA==", "85LuilH7N+c6mufwHUtF", "9Mjd/JJR6hbo8fQjZg==", "SkA7YPrxX12JbRo=", "2fZDwaBN5E+tBw==", "VlSNGsrK/95sfUVy24flta+6Ioi43B32", "CLjlLea4n8MLvov1Zw==", "S02ihrc5x/C6", "gGV6xWcvWECQBQ==", "EcQcUtKDg91tUQ4=", "YQpcvUdGvKPaHg==", "YQhIzXwraFg/LwQ=", "pJbkcPbqSzli0jIB", "x3zE9noxWECQBQ==", "b1pvqkHtG0wdjQv4Vz+4h06SoqA="]}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_GenericDownloader_1 | Yara detected Generic Downloader | Joe Security |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
JoeSecurity_FormBook | Yara detected FormBook | Joe Security | ||
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
Formbook_1 | autogenerated rule brought to you by yara-signator | Felix Bilstein - yara-signator at cocacoding dot com |
| |
Formbook | detect Formbook in memory | JPCERT/CC Incident Response Group |
| |
Click to see the 20 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_GenericDownloader_1 | Yara detected Generic Downloader | Joe Security |
⊘No Sigma rule has matched
Timestamp: | 192.168.2.335.241.57.7349702802031449 10/16/22-05:30:57.590800 |
SID: | 2031449 |
Source Port: | 49702 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.335.241.57.7349702802031412 10/16/22-05:30:57.590800 |
SID: | 2031412 |
Source Port: | 49702 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.335.241.57.7349702802031453 10/16/22-05:30:57.590800 |
SID: | 2031453 |
Source Port: | 49702 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Virustotal: | Perma Link |
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Source: | Code function: | 0_2_025636B0 | |
Source: | Code function: | 0_2_02565270 | |
Source: | Code function: | 0_2_025636A9 |
Networking |
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