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Windows Analysis Report
New PO-RJ-IN-003 - Knauf Queimados.exe

Overview

General Information

Sample Name:New PO-RJ-IN-003 - Knauf Queimados.exe
Analysis ID:755933
MD5:244fc9610f75225aa3dc09958195beb1
SHA1:ef0d6103d27090fc9d25e3ef3de2e1b6d9670d9c
SHA256:05cdda3567b913d99627f8e41336404d5830816df65e1001d6b2ad05bd9ed18d
Tags:exe
Infos:

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)
System process connects to network (likely due to code injection or exploit)
Multi AV Scanner detection for dropped file
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
Machine Learning detection for sample
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Machine Learning detection for dropped file
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
Yara signature match
One or more processes crash
Contains functionality to check if a debugger is running (IsDebuggerPresent)
May sleep (evasive loops) to hinder dynamic analysis
Contains functionality to shutdown / reboot the system
Uses code obfuscation techniques (call, push, ret)
PE file contains sections with non-standard names
Internet Provider seen in connection with other malware
Detected potential crypto function
Contains functionality to query CPU information (cpuid)
Found potential string decryption / allocating functions
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to call native functions
Contains functionality to read the clipboard data
HTTP GET or POST without a user agent
Contains functionality which may be used to detect a debugger (GetProcessHeap)
IP address seen in connection with other malware
Enables debug privileges
Creates a DirectInput object (often for capturing keystrokes)
Drops PE files
Contains functionality to read the PEB
Uses a known web browser user agent for HTTP communication
Checks if the current process is being debugged
Contains functionality to retrieve information about pressed keystrokes
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)
Contains functionality for read data from the clipboard

Classification

  • System is w10x64
  • New PO-RJ-IN-003 - Knauf Queimados.exe (PID: 748 cmdline: C:\Users\user\Desktop\New PO-RJ-IN-003 - Knauf Queimados.exe MD5: 244FC9610F75225AA3DC09958195BEB1)
    • jaxdij.exe (PID: 1572 cmdline: "C:\Users\user\AppData\Local\Temp\jaxdij.exe" C:\Users\user\AppData\Local\Temp\uqnwrddys.k MD5: 2DD6C8B13AE7D028B0047435FF0DCB8A)
      • jaxdij.exe (PID: 5360 cmdline: "C:\Users\user\AppData\Local\Temp\jaxdij.exe" C:\Users\user\AppData\Local\Temp\uqnwrddys.k MD5: 2DD6C8B13AE7D028B0047435FF0DCB8A)
        • explorer.exe (PID: 3324 cmdline: C:\Windows\Explorer.EXE MD5: AD5296B280E8F522A8A897C96BAB0E1D)
          • rubthqnwyfue.exe (PID: 5040 cmdline: "C:\Users\user\AppData\Roaming\fqkyib\rubthqnwyfue.exe" "C:\Users\user\AppData\Local\Temp\jaxdij.exe" C:\Users\user\AppData\L MD5: 2DD6C8B13AE7D028B0047435FF0DCB8A)
            • WerFault.exe (PID: 2912 cmdline: C:\Windows\SysWOW64\WerFault.exe -u -p 5040 -s 476 MD5: 9E2B8ACAD48ECCA55C0230D63623661B)
          • rubthqnwyfue.exe (PID: 6040 cmdline: "C:\Users\user\AppData\Roaming\fqkyib\rubthqnwyfue.exe" "C:\Users\user\AppData\Local\Temp\jaxdij.exe" C:\Users\user\AppData\L MD5: 2DD6C8B13AE7D028B0047435FF0DCB8A)
            • WerFault.exe (PID: 5420 cmdline: C:\Windows\SysWOW64\WerFault.exe -u -p 6040 -s 444 MD5: 9E2B8ACAD48ECCA55C0230D63623661B)
          • rundll32.exe (PID: 5412 cmdline: C:\Windows\SysWOW64\rundll32.exe MD5: D7CA562B0DB4F4DD0F03A89A1FDAD63D)
  • cleanup
{"C2 list": ["www.spirituallyzen.com/m9ae/"]}
SourceRuleDescriptionAuthorStrings
0000000B.00000002.821380016.0000000000500000.00000004.00000800.00020000.00000000.sdmpJoeSecurity_FormBookYara detected FormBookJoe Security
    0000000B.00000002.821380016.0000000000500000.00000004.00000800.00020000.00000000.sdmpWindows_Trojan_Formbook_1112e116unknownunknown
    • 0x6601:$a1: 3C 30 50 4F 53 54 74 09 40
    • 0x1f090:$a2: 74 0A 4E 0F B6 08 8D 44 08 01 75 F6 8D 70 01 0F B6 00 8D 55
    • 0xa8af:$a3: 1A D2 80 E2 AF 80 C2 7E EB 2A 80 FA 2F 75 11 8A D0 80 E2 01
    • 0x17de7:$a4: 04 83 C4 0C 83 06 07 5B 5F 5E 8B E5 5D C3 8B 17 03 55 0C 6A 01 83
    0000000B.00000002.821380016.0000000000500000.00000004.00000800.00020000.00000000.sdmpFormbook_1autogenerated rule brought to you by yara-signatorFelix Bilstein - yara-signator at cocacoding dot com
    • 0x17be5:$sequence_1: 3C 24 0F 84 76 FF FF FF 3C 25 74 94
    • 0x17691:$sequence_2: 3B 4F 14 73 95 85 C9 74 91
    • 0x17ce7:$sequence_3: 3C 69 75 44 8B 7D 18 8B 0F
    • 0x17e5f:$sequence_4: 5D C3 8D 50 7C 80 FA 07
    • 0xa47a:$sequence_5: 0F BE 5C 0E 01 0F B6 54 0E 02 83 E3 0F C1 EA 06
    • 0x168dc:$sequence_6: 57 89 45 FC 89 45 F4 89 45 F8
    • 0x1ddf7:$sequence_8: 3C 54 74 04 3C 74 75 F4
    • 0x1edfa:$sequence_9: 56 68 03 01 00 00 8D 85 95 FE FF FF 6A 00
    0000000B.00000002.821380016.0000000000500000.00000004.00000800.00020000.00000000.sdmpFormbookdetect Formbook in memoryJPCERT/CC Incident Response Group
    • 0x1a0f9:$sqlite3step: 68 34 1C 7B E1
    • 0x1ac71:$sqlite3step: 68 34 1C 7B E1
    • 0x1a13b:$sqlite3text: 68 38 2A 90 C5
    • 0x1acb6:$sqlite3text: 68 38 2A 90 C5
    • 0x1a152:$sqlite3blob: 68 53 D8 7F 8C
    • 0x1accc:$sqlite3blob: 68 53 D8 7F 8C
    00000002.00000002.417309274.0000000001060000.00000040.10000000.00040000.00000000.sdmpJoeSecurity_FormBookYara detected FormBookJoe Security
      Click to see the 25 entries
      SourceRuleDescriptionAuthorStrings
      2.2.jaxdij.exe.400000.1.raw.unpackJoeSecurity_FormBookYara detected FormBookJoe Security
        2.2.jaxdij.exe.400000.1.raw.unpackWindows_Trojan_Formbook_1112e116unknownunknown
        • 0x7d38:$a1: 3C 30 50 4F 53 54 74 09 40
        • 0x207c7:$a2: 74 0A 4E 0F B6 08 8D 44 08 01 75 F6 8D 70 01 0F B6 00 8D 55
        • 0xbfe6:$a3: 1A D2 80 E2 AF 80 C2 7E EB 2A 80 FA 2F 75 11 8A D0 80 E2 01
        • 0x1951e:$a4: 04 83 C4 0C 83 06 07 5B 5F 5E 8B E5 5D C3 8B 17 03 55 0C 6A 01 83
        2.2.jaxdij.exe.400000.1.raw.unpackFormbook_1autogenerated rule brought to you by yara-signatorFelix Bilstein - yara-signator at cocacoding dot com
        • 0x1931c:$sequence_1: 3C 24 0F 84 76 FF FF FF 3C 25 74 94
        • 0x18dc8:$sequence_2: 3B 4F 14 73 95 85 C9 74 91
        • 0x1941e:$sequence_3: 3C 69 75 44 8B 7D 18 8B 0F
        • 0x19596:$sequence_4: 5D C3 8D 50 7C 80 FA 07
        • 0xbbb1:$sequence_5: 0F BE 5C 0E 01 0F B6 54 0E 02 83 E3 0F C1 EA 06
        • 0x18013:$sequence_6: 57 89 45 FC 89 45 F4 89 45 F8
        • 0x1f52e:$sequence_8: 3C 54 74 04 3C 74 75 F4
        • 0x20531:$sequence_9: 56 68 03 01 00 00 8D 85 95 FE FF FF 6A 00
        2.2.jaxdij.exe.400000.1.raw.unpackFormbookdetect Formbook in memoryJPCERT/CC Incident Response Group
        • 0x1b830:$sqlite3step: 68 34 1C 7B E1
        • 0x1c3a8:$sqlite3step: 68 34 1C 7B E1
        • 0x1b872:$sqlite3text: 68 38 2A 90 C5
        • 0x1c3ed:$sqlite3text: 68 38 2A 90 C5
        • 0x1b889:$sqlite3blob: 68 53 D8 7F 8C
        • 0x1c403:$sqlite3blob: 68 53 D8 7F 8C
        2.2.jaxdij.exe.400000.1.unpackJoeSecurity_FormBookYara detected FormBookJoe Security
          Click to see the 3 entries
          No Sigma rule has matched
          Timestamp:192.168.2.593.179.127.2749736802031449 11/29/22-10:35:37.226497
          SID:2031449
          Source Port:49736
          Destination Port:80
          Protocol:TCP
          Classtype:A Network Trojan was detected
          Timestamp:192.168.2.5107.148.15.8149749802031453 11/29/22-10:36:16.701501
          SID:2031453
          Source Port:49749
          Destination Port:80
          Protocol:TCP
          Classtype:A Network Trojan was detected
          Timestamp:192.168.2.5107.148.15.8149749802031412 11/29/22-10:36:16.701501
          SID:2031412
          Source Port:49749
          Destination Port:80
          Protocol:TCP
          Classtype:A Network Trojan was detected
          Timestamp:192.168.2.593.179.127.2749736802031453 11/29/22-10:35:37.226497
          SID:2031453
          Source Port:49736
          Destination Port:80
          Protocol:TCP
          Classtype:A Network Trojan was detected
          Timestamp:192.168.2.5107.148.15.8149749802031449 11/29/22-10:36:16.701501
          SID:2031449
          Source Port:49749
          Destination Port:80
          Protocol:TCP
          Classtype:A Network Trojan was detected
          Timestamp:192.168.2.593.179.127.2749736802031412 11/29/22-10:35:37.226497
          SID:2031412
          Source Port:49736
          Destination Port:80
          Protocol:TCP
          Classtype:A Network Trojan was detected

          Click to jump to signature section

          Show All Signature Results

          AV Detection

          barindex
          Source: New PO-RJ-IN-003 - Knauf Queimados.exeReversingLabs: Detection: 27%
          Source: Yara matchFile source: 2.2.jaxdij.exe.400000.1.raw.unpack, type: UNPACKEDPE
          Source: Yara matchFile source: 2.2.jaxdij.exe.400000.1.unpack, type: UNPACKEDPE
          Source: Yara matchFile source: 0000000B.00000002.821380016.0000000000500000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
          Source: Yara matchFile source: 00000002.00000002.417309274.0000000001060000.00000040.10000000.00040000.00000000.sdmp, type: MEMORY
          Source: Yara matchFile source: 00000002.00000002.417458366.0000000001090000.00000040.10000000.00040000.00000000.sdmp, type: MEMORY
          Source: Yara matchFile source: 0000000B.00000002.822152428.0000000004480000.00000040.10000000.00040000.00000000.sdmp, type: MEMORY
          Source: Yara matchFile source: 00000003.00000000.383481318.000000001091F000.00000040.00000001.00040000.00000000.sdmp, type: MEMORY
          Source: Yara matchFile source: 0000000B.00000002.821985368.0000000002CC0000.00000040.80000000.00040000.00000000.sdmp, type: MEMORY
          Source: Yara matchFile source: 00000002.00000002.415905710.0000000000400000.00000040.80000000.00040000.00000000.sdmp, type: MEMORY
          Source: C:\Users\user\AppData\Local\Temp\jaxdij.exeReversingLabs: Detection: 12%
          Source: C:\Users\user\AppData\Roaming\fqkyib\rubthqnwyfue.exeReversingLabs: Detection: 12%
          Source: New PO-RJ-IN-003 - Knauf Queimados.exeJoe Sandbox ML: detected
          Source: C:\Users\user\AppData\Local\Temp\jaxdij.exeJoe Sandbox ML: detected
          Source: C:\Users\user\AppData\Roaming\fqkyib\rubthqnwyfue.exeJoe Sandbox ML: detected
          Source: 0000000B.00000002.821380016.0000000000500000.00000004.00000800.00020000.00000000.sdmpMalware Configuration Extractor: FormBook {"C2 list": ["www.spirituallyzen.com/m9ae/"]}
          Source: New PO-RJ-IN-003 - Knauf Queimados.exeStatic PE information: RELOCS_STRIPPED, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, 32BIT_MACHINE
          Source: Binary string: wntdll.pdbUGP source: jaxdij.exe, 00000001.00000003.304952099.0000000002EB0000.00000004.00001000.00020000.00000000.sdmp, jaxdij.exe, 00000001.00000003.305442147.0000000002D20000.00000004.00001000.00020000.00000000.sdmp, jaxdij.exe, 00000002.00000002.418718390.00000000012A0000.00000040.00000800.00020000.00000000.sdmp, jaxdij.exe, 00000002.00000003.308889857.0000000000F6D000.00000004.00000800.00020000.00000000.sdmp, jaxdij.exe, 00000002.00000003.310322417.0000000001101000.00000004.00000800.00020000.00000000.sdmp, jaxdij.exe, 00000002.00000002.419932774.00000000013BF000.00000040.00000800.00020000.00000000.sdmp, rundll32.exe, 0000000B.00000002.822319610.00000000046C0000.00000040.00000800.00020000.00000000.sdmp, run