Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    25-10-2022 22:57

General

  • Target

    1e89ad1b57f362b2c08cb2a73bb0cb0cc59b1a80d992a7f7f730a564e659d6bb.exe

  • Size

    255KB

  • MD5

    f7826309fa064e57808cbfb952c1e03d

  • SHA1

    bf3667f8a8a513e61f27204e17ff8cdc53bab9ee

  • SHA256

    1e89ad1b57f362b2c08cb2a73bb0cb0cc59b1a80d992a7f7f730a564e659d6bb

  • SHA512

    6379528a3e2608c6544df4d7339c1e52812a65a6d3cf6d0786fc89b873813f2d3496abd02a4a2ac9b68f51058591c72addb88adcca8fbacc4d0ebe3344216f7d

  • SSDEEP

    3072:sxXVUQYbL9SSsm7PtTUjR2n/1c9S2VWGQTnWhe2JRv0mTbQ9HsT:GT0LFt7PtTNWS2YGQ7WlTv0m2MT

Malware Config

Extracted

Family

vidar

Version

55.2

Botnet

937

C2

https://t.me/slivetalks

https://c.im/@xinibin420

Attributes
  • profile_id

    937

Signatures

  • Detects Smokeloader packer 1 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 3 IoCs
  • 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.

  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • 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 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1e89ad1b57f362b2c08cb2a73bb0cb0cc59b1a80d992a7f7f730a564e659d6bb.exe
    "C:\Users\Admin\AppData\Local\Temp\1e89ad1b57f362b2c08cb2a73bb0cb0cc59b1a80d992a7f7f730a564e659d6bb.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:4372
  • C:\Users\Admin\AppData\Local\Temp\CFD3.exe
    C:\Users\Admin\AppData\Local\Temp\CFD3.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    • Modifies system certificate store
    PID:3564
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3564 -s 2188
      2⤵
      • Program crash
      PID:4288

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

3
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\CFD3.exe
    Filesize

    343KB

    MD5

    ba97a8ba982684ffd26140b002fcf5f6

    SHA1

    8d0b982e8e9aaf3a84e3b17ebc910d26d341b1f7

    SHA256

    a3282df5188935d442674443e22d2f8bc5d5390a778b386a675d2a66a619d47b

    SHA512

    27823fba4a49841df28e5cd99dc68d9a258213cafade5aacaabac60461bdc273751aba808c7008374b3c7861664c7b1b301556c9b2e5ada8bf6c435e05a5ea8f

  • C:\Users\Admin\AppData\Local\Temp\CFD3.exe
    Filesize

    343KB

    MD5

    ba97a8ba982684ffd26140b002fcf5f6

    SHA1

    8d0b982e8e9aaf3a84e3b17ebc910d26d341b1f7

    SHA256

    a3282df5188935d442674443e22d2f8bc5d5390a778b386a675d2a66a619d47b

    SHA512

    27823fba4a49841df28e5cd99dc68d9a258213cafade5aacaabac60461bdc273751aba808c7008374b3c7861664c7b1b301556c9b2e5ada8bf6c435e05a5ea8f

  • \ProgramData\mozglue.dll
    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll
    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • \ProgramData\sqlite3.dll
    Filesize

    1.1MB

    MD5

    1f44d4d3087c2b202cf9c90ee9d04b0f

    SHA1

    106a3ebc9e39ab6ddb3ff987efb6527c956f192d

    SHA256

    4841020c8bd06b08fde6e44cbe2e2ab33439e1c8368e936ec5b00dc0584f7260

    SHA512

    b614c72a3c1ce681ebffa628e29aa50275cc80ca9267380960c5198ea4d0a3f2df6cfb7275491d220bad72f14fc94e6656501e9a061d102fb11e00cfda2beb45

  • memory/3564-175-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-178-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-250-0x0000000000400000-0x0000000002C44000-memory.dmp
    Filesize

    40.3MB

  • memory/3564-249-0x0000000002CB0000-0x0000000002DFA000-memory.dmp
    Filesize

    1.3MB

  • memory/3564-158-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-194-0x0000000000400000-0x0000000002C44000-memory.dmp
    Filesize

    40.3MB

  • memory/3564-190-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-189-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-188-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-187-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-186-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-183-0x0000000002FA0000-0x0000000002FE9000-memory.dmp
    Filesize

    292KB

  • memory/3564-185-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-184-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-182-0x0000000002CB0000-0x0000000002DFA000-memory.dmp
    Filesize

    1.3MB

  • memory/3564-180-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-181-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-179-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-160-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-177-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-174-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-173-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-172-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-171-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-169-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-170-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-168-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-167-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-166-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-165-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-162-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-161-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-154-0x0000000000000000-mapping.dmp
  • memory/3564-176-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-156-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-157-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/3564-159-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-125-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-122-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-153-0x0000000000400000-0x0000000002C2E000-memory.dmp
    Filesize

    40.2MB

  • memory/4372-118-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-120-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-151-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-150-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-140-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-148-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-147-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-144-0x0000000002D80000-0x0000000002D89000-memory.dmp
    Filesize

    36KB

  • memory/4372-145-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-146-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-142-0x0000000002C30000-0x0000000002CDE000-memory.dmp
    Filesize

    696KB

  • memory/4372-143-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-116-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-141-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-149-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-152-0x0000000000400000-0x0000000002C2E000-memory.dmp
    Filesize

    40.2MB

  • memory/4372-121-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-137-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-138-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-135-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-136-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-139-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-133-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-132-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-131-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-129-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-130-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-128-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-127-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-119-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-126-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-117-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-134-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB

  • memory/4372-124-0x0000000077520000-0x00000000776AE000-memory.dmp
    Filesize

    1.6MB