Analysis

  • max time kernel
    150s
  • max time network
    141s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    31-07-2020 11:02

General

  • Target

    7b0f78e83f4027c6b6bd15af68b68af2.exe

  • Size

    595KB

  • MD5

    7b0f78e83f4027c6b6bd15af68b68af2

  • SHA1

    cf8fdfb81265fa4ec264f787dedcc2d52c782a36

  • SHA256

    1912d659af4fedbc9e143eff5e666ce460a710fd84c83f7a4c4d8170356e578a

  • SHA512

    37faf89c2735d629c682048fca73b6200c9b313a26307b426f4d60028c4f1d658417629af85ef1633d560fcba0851ad6a5a16615fc7a65945343949e1610de53

Malware Config

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • JavaScript code in executable 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 2 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Kills process with taskkill 1 IoCs
  • Modifies Control Panel 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Modifies registry class 273 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7b0f78e83f4027c6b6bd15af68b68af2.exe
    "C:\Users\Admin\AppData\Local\Temp\7b0f78e83f4027c6b6bd15af68b68af2.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:3900
    • C:\Program Files (x86)\wotsuper\wotsuper\wotsuper.exe
      "C:\Program Files (x86)\wotsuper\wotsuper\wotsuper.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2652
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c taskkill /im wotsuper.exe /f & erase C:\Program Files (x86)\wotsuper\wotsuper\wotsuper.exe & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3596
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /im wotsuper.exe /f
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:3752
    • C:\Program Files (x86)\wotsuper\wotsuper\wotsuper1.exe
      "C:\Program Files (x86)\wotsuper\wotsuper\wotsuper1.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3052
      • C:\Users\Admin\AppData\Local\Temp\dd09bc8c..exe
        "C:\Users\Admin\AppData\Local\Temp\dd09bc8c..exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3904
        • C:\Users\Admin\AppData\Local\Temp\dd09bc8c..exe
          "C:\Users\Admin\AppData\Local\Temp\dd09bc8c..exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4204
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c ping 127.0.0.1 && del "C:\Program Files (x86)\wotsuper\wotsuper\wotsuper1.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3552
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:2692
    • C:\Windows\SysWOW64\regedit.exe
      "C:\Windows\System32\regedit.exe" \s C:\Windows\wotsuper.reg
      2⤵
      • Runs .reg file with regedit
      PID:3872
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
    1⤵
    • Drops file in Windows directory
    • Modifies Control Panel
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:996
  • C:\Windows\system32\browser_broker.exe
    C:\Windows\system32\browser_broker.exe -Embedding
    1⤵
    • Modifies Internet Explorer settings
    PID:1096
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2408
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    PID:3976
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    PID:3344
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    PID:4636
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    PID:4724

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Collection

Data from Local System

4
T1005

Command and Control

Web Service

1
T1102

Replay Monitor

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Downloads

  • C:\Program Files (x86)\wotsuper\wotsuper\wotsuper.exe
    MD5

    befcd9935633f7417e28f2660d676365

    SHA1

    c293d06c991fde8c562b898472a318b0afa067e9

    SHA256

    de6bbc1648a408ff79f5c7e48c25e0095251ecb0fde4ad88fd94adb6d03710b7

    SHA512

    03d34c622fdcc100832831d24eec3e1f8bc65ed22ab160bf032895fc18aebe0e66d403e380705207b7ed001215d7801f0d95af464f72108333e304a5837b828d

  • C:\Program Files (x86)\wotsuper\wotsuper\wotsuper.exe
    MD5

    befcd9935633f7417e28f2660d676365

    SHA1

    c293d06c991fde8c562b898472a318b0afa067e9

    SHA256

    de6bbc1648a408ff79f5c7e48c25e0095251ecb0fde4ad88fd94adb6d03710b7

    SHA512

    03d34c622fdcc100832831d24eec3e1f8bc65ed22ab160bf032895fc18aebe0e66d403e380705207b7ed001215d7801f0d95af464f72108333e304a5837b828d

  • C:\Program Files (x86)\wotsuper\wotsuper\wotsuper1.exe
    MD5

    e824c09b483093d4825c5ccf76539123

    SHA1

    66399a2d4abdf4f29a35a350ef94946527c7b4d2

    SHA256

    a59e157f814cc47b7f49905796ff81659ecd3e90cf6a96ab2aa5328ea8fbf65e

    SHA512

    883ad2fbd85a32bb39791b4be52d798c59bfab84bd68fbb6a292afcdacd61e3d7b1e7981748821679e411a51e7dd02b736b42f2a1f7ef0a35e1758cb94e10433

  • C:\Program Files (x86)\wotsuper\wotsuper\wotsuper1.exe
    MD5

    e824c09b483093d4825c5ccf76539123

    SHA1

    66399a2d4abdf4f29a35a350ef94946527c7b4d2

    SHA256

    a59e157f814cc47b7f49905796ff81659ecd3e90cf6a96ab2aa5328ea8fbf65e

    SHA512

    883ad2fbd85a32bb39791b4be52d798c59bfab84bd68fbb6a292afcdacd61e3d7b1e7981748821679e411a51e7dd02b736b42f2a1f7ef0a35e1758cb94e10433

  • C:\Users\Admin\AppData\Local\Temp\dd09bc8c..exe
    MD5

    d9a97096753da9101e89efe264834629

    SHA1

    bef5989964ecc57613554049b76086d99d4207f0

    SHA256

    2afb9e882933b951a803e82694e39249e51e0ec987212edc46f261240dad76b6

    SHA512

    4d29505235883ec980acdd62a5de049f6ae1209102c0658a70a06c0ffa7da59b312f619c9db3739da412a515b04813a09b0737d7bf64df1c8483083b01b413e5

  • C:\Users\Admin\AppData\Local\Temp\dd09bc8c..exe
    MD5

    d9a97096753da9101e89efe264834629

    SHA1

    bef5989964ecc57613554049b76086d99d4207f0

    SHA256

    2afb9e882933b951a803e82694e39249e51e0ec987212edc46f261240dad76b6

    SHA512

    4d29505235883ec980acdd62a5de049f6ae1209102c0658a70a06c0ffa7da59b312f619c9db3739da412a515b04813a09b0737d7bf64df1c8483083b01b413e5

  • C:\Users\Admin\AppData\Local\Temp\dd09bc8c..exe
    MD5

    d9a97096753da9101e89efe264834629

    SHA1

    bef5989964ecc57613554049b76086d99d4207f0

    SHA256

    2afb9e882933b951a803e82694e39249e51e0ec987212edc46f261240dad76b6

    SHA512

    4d29505235883ec980acdd62a5de049f6ae1209102c0658a70a06c0ffa7da59b312f619c9db3739da412a515b04813a09b0737d7bf64df1c8483083b01b413e5

  • \ProgramData\mozglue.dll
    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • \ProgramData\nss3.dll
    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • \Users\Admin\AppData\Local\Temp\D47F.tmp
    MD5

    50741b3f2d7debf5d2bed63d88404029

    SHA1

    56210388a627b926162b36967045be06ffb1aad3

    SHA256

    f2f8732ae464738372ff274b7e481366cecdd2337210d4a3cbcd089c958a730c

    SHA512

    fac6bfe35b1ee08b3d42d330516a260d9cdb4a90bbb0491411a583029b92a59d20af3552372ea8fb3f59442b3945bf524ef284127f397ae7179467080be8e9b3

  • memory/2652-0-0x0000000000000000-mapping.dmp
  • memory/2692-96-0x0000000000000000-mapping.dmp
  • memory/3052-7-0x0000000000A40000-0x0000000000A57000-memory.dmp
    Filesize

    92KB

  • memory/3052-9-0x0000000000AA0000-0x0000000000ABE000-memory.dmp
    Filesize

    120KB

  • memory/3052-3-0x0000000000000000-mapping.dmp
  • memory/3552-95-0x0000000000000000-mapping.dmp
  • memory/3596-93-0x0000000000000000-mapping.dmp
  • memory/3752-94-0x0000000000000000-mapping.dmp
  • memory/3872-6-0x0000000000000000-mapping.dmp
  • memory/3904-98-0x00000000050D0000-0x00000000050D1000-memory.dmp
    Filesize

    4KB

  • memory/3904-97-0x0000000003511000-0x0000000003512000-memory.dmp
    Filesize

    4KB

  • memory/3904-90-0x0000000000000000-mapping.dmp
  • memory/4204-101-0x0000000000402C70-mapping.dmp
  • memory/4204-100-0x0000000000400000-0x000000000040A000-memory.dmp
    Filesize

    40KB