Analysis

  • max time kernel
    45s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    30-10-2022 16:58

General

  • Target

    1ea3b43e8a8ce761479e26f94ccf9bd5.exe

  • Size

    8.8MB

  • MD5

    1ea3b43e8a8ce761479e26f94ccf9bd5

  • SHA1

    5936e36c3dd39216803c72e0841da6f6df256291

  • SHA256

    5fe32142dcc57fbdf2a827abcbf92f22d0e6b84aeb1d94f7a3c1c9f674d7567b

  • SHA512

    c3bfcb88839ee2d3eedda32fbdd72dbc6b29ccf8217a265eb3edd19a0b4259a273343035296ac8b34d72bcdcd28697dee509107eb99f8cd6a59bb046dbee4e59

  • SSDEEP

    196608:dCdbOITPSUUpIS9u/pRDXvQhAJ4TsHhGgXZQWYhr5bi:WjTPlcI1XDXv8A2TsBGgX

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/835255995735343134/XNe_EsIHeOwVdqPUaV7pv4uxkib5RHnv_Tn6JCr4hEBupeIfyQN2tRINJsXKij_tI_Ec

Signatures

  • Matiex

    Matiex is a keylogger and infostealer first seen in July 2020.

  • Matiex Main payload 8 IoCs
  • Mercurial Grabber Stealer

    Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.

  • Executes dropped EXE 4 IoCs
  • Deletes itself 1 IoCs
  • Drops startup file 1 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 6 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 2 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Runs ping.exe 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1ea3b43e8a8ce761479e26f94ccf9bd5.exe
    "C:\Users\Admin\AppData\Local\Temp\1ea3b43e8a8ce761479e26f94ccf9bd5.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1424
    • C:\Users\Admin\AppData\Local\Temp\msvcp140.exe
      "C:\Users\Admin\AppData\Local\Temp\msvcp140.exe"
      2⤵
      • Executes dropped EXE
      PID:1528
    • C:\Users\Admin\AppData\Local\Temp\vcruntime140.exe
      "C:\Users\Admin\AppData\Local\Temp\vcruntime140.exe"
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1104
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 1104 -s 1808
        3⤵
        • Program crash
        PID:1924
    • C:\Users\Admin\AppData\Local\Temp\ffmpeg.exe
      "C:\Users\Admin\AppData\Local\Temp\ffmpeg.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:948
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 948 -s 1828
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:1764
    • C:\Users\Admin\AppData\Local\Temp\modest-menu.exe
      "C:\Users\Admin\AppData\Local\Temp\modest-menu.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:112
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C ping 1.1.1.1 -n 1 -w 100 > Nul & Del "C:\Users\Admin\AppData\Local\Temp\1ea3b43e8a8ce761479e26f94ccf9bd5.exe"& ping 1.1.1.1 -n 1 -w 900 > Nul & Del "C:\Users\Admin\AppData\Local\Temp\1ea3b43e8a8ce761479e26f94ccf9bd5.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1648
      • C:\Windows\system32\PING.EXE
        ping 1.1.1.1 -n 1 -w 100
        3⤵
        • Runs ping.exe
        PID:1676
      • C:\Windows\system32\PING.EXE
        ping 1.1.1.1 -n 1 -w 900
        3⤵
        • Runs ping.exe
        PID:1696

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Remote System Discovery

1
T1018

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\ffmpeg.exe
    Filesize

    448KB

    MD5

    78942c6e318b0c460c37069695742d4a

    SHA1

    fc31e2c1887f95d19d8331ff0945688c7fec32c5

    SHA256

    c749d39cf57c5ffb8ed18aaf961ad571e0a698c424ec07bf6c9fad3ae407425c

    SHA512

    0bcf7dc7e7a2354b0a23e60ec477adf8003a22d7833c302fc7bceb72d59281bbec3d225c01b21888cd01310702bec12d08e3d4f283abd3d0c607619bf9bd9f8d

  • C:\Users\Admin\AppData\Local\Temp\ffmpeg.exe
    Filesize

    448KB

    MD5

    78942c6e318b0c460c37069695742d4a

    SHA1

    fc31e2c1887f95d19d8331ff0945688c7fec32c5

    SHA256

    c749d39cf57c5ffb8ed18aaf961ad571e0a698c424ec07bf6c9fad3ae407425c

    SHA512

    0bcf7dc7e7a2354b0a23e60ec477adf8003a22d7833c302fc7bceb72d59281bbec3d225c01b21888cd01310702bec12d08e3d4f283abd3d0c607619bf9bd9f8d

  • C:\Users\Admin\AppData\Local\Temp\modest-menu.exe
    Filesize

    8.7MB

    MD5

    13e5efd3938a8fedcfb0820e5593dc4e

    SHA1

    3376481dda6c0349a2a377a98434b30d9f2bde20

    SHA256

    e56c11e2ca383b47312ffe202c0fb7defb89bf8b303d67359a282f0a994ca92c

    SHA512

    d944adc95fc8230a11724e355ea8ac8ddfaf8373f5a7ab622ac9c7015bd1abb0aca64b9ead957f83994a73000cf2856f80bb61f944334d3b09b0de229d1452cd

  • C:\Users\Admin\AppData\Local\Temp\modest-menu.exe
    Filesize

    8.7MB

    MD5

    13e5efd3938a8fedcfb0820e5593dc4e

    SHA1

    3376481dda6c0349a2a377a98434b30d9f2bde20

    SHA256

    e56c11e2ca383b47312ffe202c0fb7defb89bf8b303d67359a282f0a994ca92c

    SHA512

    d944adc95fc8230a11724e355ea8ac8ddfaf8373f5a7ab622ac9c7015bd1abb0aca64b9ead957f83994a73000cf2856f80bb61f944334d3b09b0de229d1452cd

  • C:\Users\Admin\AppData\Local\Temp\msvcp140.exe
    Filesize

    8KB

    MD5

    324c2e555431e860fac2b2bfc04adb1d

    SHA1

    c1f4215f0452f1d96c92ee324bc2cef999294874

    SHA256

    cb2079641bb1bac84ed28836bb03817e09017553e412e26d166673459ad4c688

    SHA512

    07fac78b65341498eaea79e46bdeed74d516db58d66c03b6a5e7fb0ae5d99cf9d4255472fcfed13a14d3b2734b602f95e84796a761c5231a418a137d3fbdc500

  • C:\Users\Admin\AppData\Local\Temp\msvcp140.exe
    Filesize

    8KB

    MD5

    324c2e555431e860fac2b2bfc04adb1d

    SHA1

    c1f4215f0452f1d96c92ee324bc2cef999294874

    SHA256

    cb2079641bb1bac84ed28836bb03817e09017553e412e26d166673459ad4c688

    SHA512

    07fac78b65341498eaea79e46bdeed74d516db58d66c03b6a5e7fb0ae5d99cf9d4255472fcfed13a14d3b2734b602f95e84796a761c5231a418a137d3fbdc500

  • C:\Users\Admin\AppData\Local\Temp\vcruntime140.exe
    Filesize

    41KB

    MD5

    458168047894c09ae76b0add79c7122d

    SHA1

    4e291744275e8e9006c15d03489e0b252592a817

    SHA256

    99c506c6a6fbbf9d7ed9e20ed02dfb91be159f0f33498153ca2894731fe41949

    SHA512

    fcdad8b12068cd6f1da8a6ab1cab610aa383a1f86aaf4523122e3ce0fd9ab7315fc6c239259860ab13dd83342c75c7aa18c997bc7eaefa445a77bdb7eb14ff61

  • C:\Users\Admin\AppData\Local\Temp\vcruntime140.exe
    Filesize

    41KB

    MD5

    458168047894c09ae76b0add79c7122d

    SHA1

    4e291744275e8e9006c15d03489e0b252592a817

    SHA256

    99c506c6a6fbbf9d7ed9e20ed02dfb91be159f0f33498153ca2894731fe41949

    SHA512

    fcdad8b12068cd6f1da8a6ab1cab610aa383a1f86aaf4523122e3ce0fd9ab7315fc6c239259860ab13dd83342c75c7aa18c997bc7eaefa445a77bdb7eb14ff61

  • \Users\Admin\AppData\Local\Temp\ffmpeg.exe
    Filesize

    448KB

    MD5

    78942c6e318b0c460c37069695742d4a

    SHA1

    fc31e2c1887f95d19d8331ff0945688c7fec32c5

    SHA256

    c749d39cf57c5ffb8ed18aaf961ad571e0a698c424ec07bf6c9fad3ae407425c

    SHA512

    0bcf7dc7e7a2354b0a23e60ec477adf8003a22d7833c302fc7bceb72d59281bbec3d225c01b21888cd01310702bec12d08e3d4f283abd3d0c607619bf9bd9f8d

  • \Users\Admin\AppData\Local\Temp\ffmpeg.exe
    Filesize

    448KB

    MD5

    78942c6e318b0c460c37069695742d4a

    SHA1

    fc31e2c1887f95d19d8331ff0945688c7fec32c5

    SHA256

    c749d39cf57c5ffb8ed18aaf961ad571e0a698c424ec07bf6c9fad3ae407425c

    SHA512

    0bcf7dc7e7a2354b0a23e60ec477adf8003a22d7833c302fc7bceb72d59281bbec3d225c01b21888cd01310702bec12d08e3d4f283abd3d0c607619bf9bd9f8d

  • \Users\Admin\AppData\Local\Temp\ffmpeg.exe
    Filesize

    448KB

    MD5

    78942c6e318b0c460c37069695742d4a

    SHA1

    fc31e2c1887f95d19d8331ff0945688c7fec32c5

    SHA256

    c749d39cf57c5ffb8ed18aaf961ad571e0a698c424ec07bf6c9fad3ae407425c

    SHA512

    0bcf7dc7e7a2354b0a23e60ec477adf8003a22d7833c302fc7bceb72d59281bbec3d225c01b21888cd01310702bec12d08e3d4f283abd3d0c607619bf9bd9f8d

  • \Users\Admin\AppData\Local\Temp\ffmpeg.exe
    Filesize

    448KB

    MD5

    78942c6e318b0c460c37069695742d4a

    SHA1

    fc31e2c1887f95d19d8331ff0945688c7fec32c5

    SHA256

    c749d39cf57c5ffb8ed18aaf961ad571e0a698c424ec07bf6c9fad3ae407425c

    SHA512

    0bcf7dc7e7a2354b0a23e60ec477adf8003a22d7833c302fc7bceb72d59281bbec3d225c01b21888cd01310702bec12d08e3d4f283abd3d0c607619bf9bd9f8d

  • \Users\Admin\AppData\Local\Temp\ffmpeg.exe
    Filesize

    448KB

    MD5

    78942c6e318b0c460c37069695742d4a

    SHA1

    fc31e2c1887f95d19d8331ff0945688c7fec32c5

    SHA256

    c749d39cf57c5ffb8ed18aaf961ad571e0a698c424ec07bf6c9fad3ae407425c

    SHA512

    0bcf7dc7e7a2354b0a23e60ec477adf8003a22d7833c302fc7bceb72d59281bbec3d225c01b21888cd01310702bec12d08e3d4f283abd3d0c607619bf9bd9f8d

  • memory/112-81-0x000000001B716000-0x000000001B735000-memory.dmp
    Filesize

    124KB

  • memory/112-73-0x0000000000E50000-0x000000000170A000-memory.dmp
    Filesize

    8.7MB

  • memory/112-67-0x0000000000000000-mapping.dmp
  • memory/112-76-0x000000001B716000-0x000000001B735000-memory.dmp
    Filesize

    124KB

  • memory/948-70-0x0000000000E20000-0x0000000000E96000-memory.dmp
    Filesize

    472KB

  • memory/948-64-0x0000000000000000-mapping.dmp
  • memory/1104-60-0x0000000000000000-mapping.dmp
  • memory/1104-63-0x0000000000FB0000-0x0000000000FC0000-memory.dmp
    Filesize

    64KB

  • memory/1424-74-0x0000000002996000-0x00000000029B5000-memory.dmp
    Filesize

    124KB

  • memory/1424-54-0x0000000000960000-0x0000000001238000-memory.dmp
    Filesize

    8.8MB

  • memory/1424-56-0x000007FEFBD11000-0x000007FEFBD13000-memory.dmp
    Filesize

    8KB

  • memory/1424-55-0x0000000002996000-0x00000000029B5000-memory.dmp
    Filesize

    124KB

  • memory/1528-71-0x0000000000CE0000-0x0000000000CE8000-memory.dmp
    Filesize

    32KB

  • memory/1528-78-0x0000000076151000-0x0000000076153000-memory.dmp
    Filesize

    8KB

  • memory/1528-57-0x0000000000000000-mapping.dmp
  • memory/1648-72-0x0000000000000000-mapping.dmp
  • memory/1676-75-0x0000000000000000-mapping.dmp
  • memory/1696-77-0x0000000000000000-mapping.dmp
  • memory/1764-82-0x0000000000000000-mapping.dmp
  • memory/1924-80-0x0000000000000000-mapping.dmp