Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    22-10-2021 10:10

General

  • Target

    5cfa1c74d3410705daf7055374b56f2f.exe

  • Size

    68KB

  • MD5

    5cfa1c74d3410705daf7055374b56f2f

  • SHA1

    6943644e7c6e52324353770e13ede9b78e3036a9

  • SHA256

    517c6f4aad96b59020c6c736521a3084b2c625c5d7ce4f637634839b98b28c11

  • SHA512

    ec513614e02f6b69224adc17284581069aae97269518d41a0b9a451ab2fdc5f12ae74900853d6794c67407fc5e8294543a49b1658f102ff23d76d1308a4aaae7

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Executes dropped EXE 7 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 4 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5cfa1c74d3410705daf7055374b56f2f.exe
    "C:\Users\Admin\AppData\Local\Temp\5cfa1c74d3410705daf7055374b56f2f.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1568
    • C:\Users\Admin\AppData\Roaming\3607966.exe
      "C:\Users\Admin\AppData\Roaming\3607966.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:688
    • C:\Users\Admin\AppData\Roaming\3578282.exe
      "C:\Users\Admin\AppData\Roaming\3578282.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1668
    • C:\Users\Admin\AppData\Roaming\5243938.exe
      "C:\Users\Admin\AppData\Roaming\5243938.exe"
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      PID:624
    • C:\Users\Admin\AppData\Roaming\3311119.exe
      "C:\Users\Admin\AppData\Roaming\3311119.exe"
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      PID:1480
    • C:\Users\Admin\AppData\Roaming\1526723.exe
      "C:\Users\Admin\AppData\Roaming\1526723.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1716
      • C:\Users\Admin\AppData\Roaming\WinHost\WinHoster.exe
        "C:\Users\Admin\AppData\Roaming\WinHost\WinHoster.exe"
        3⤵
        • Executes dropped EXE
        PID:1608
    • C:\Users\Admin\AppData\Roaming\2281014.exe
      "C:\Users\Admin\AppData\Roaming\2281014.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1944

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\1526723.exe
    MD5

    a20e32791806c7b29070b95226b0e480

    SHA1

    8f2bac75ffabbe45770076047ded99f243622e5f

    SHA256

    df24005d51e393ed322bbf354c31485dab121ae0a445a754e08bb7912d9cd146

    SHA512

    6cf6b6aa3d4d82e7f202c5a0d3fd9a1085e05dd136e0532702e61de6e9a09b76eb5ec2add7f3a3e926e304aab928bbc639661cf6380133c8e00c387d4e9f2ca0

  • C:\Users\Admin\AppData\Roaming\1526723.exe
    MD5

    a20e32791806c7b29070b95226b0e480

    SHA1

    8f2bac75ffabbe45770076047ded99f243622e5f

    SHA256

    df24005d51e393ed322bbf354c31485dab121ae0a445a754e08bb7912d9cd146

    SHA512

    6cf6b6aa3d4d82e7f202c5a0d3fd9a1085e05dd136e0532702e61de6e9a09b76eb5ec2add7f3a3e926e304aab928bbc639661cf6380133c8e00c387d4e9f2ca0

  • C:\Users\Admin\AppData\Roaming\2281014.exe
    MD5

    d4afd6e583d54a75f39bf4934b99c684

    SHA1

    c9262e240a4a503d426b47b90c7b6fe6ed8bed9e

    SHA256

    0dca699c7d1729954372be2fe70f5da34521de4aa0e5b504a0f6a1c27b12c3f9

    SHA512

    87a29ea404583acf4eef5b4fe2feab8f16483af0cbe8cdfbc3e96ee41836f48e2e9456d54db734c150e6003d42596f8760e3500ec7ffefb50015b44c854a528f

  • C:\Users\Admin\AppData\Roaming\2281014.exe
    MD5

    d4afd6e583d54a75f39bf4934b99c684

    SHA1

    c9262e240a4a503d426b47b90c7b6fe6ed8bed9e

    SHA256

    0dca699c7d1729954372be2fe70f5da34521de4aa0e5b504a0f6a1c27b12c3f9

    SHA512

    87a29ea404583acf4eef5b4fe2feab8f16483af0cbe8cdfbc3e96ee41836f48e2e9456d54db734c150e6003d42596f8760e3500ec7ffefb50015b44c854a528f

  • C:\Users\Admin\AppData\Roaming\3311119.exe
    MD5

    a983f21830995c68472ebfa937acf4ca

    SHA1

    37b652cdf432a14d658ace5447c51d6954fc8fdb

    SHA256

    8ad9e5bb76241b55016fcc32dfed84d2fe80d64463f781d408e2eb51c8beb3c0

    SHA512

    cd2c0c4b833d85a0e7cd1627d9a3fc9332b2c65821ea5f1982fde85568d4f008b263826210c6912222b98e6207268cde467f1010f775b77fa9633b51280494e3

  • C:\Users\Admin\AppData\Roaming\3578282.exe
    MD5

    333024944f87b82e5df1ea3afe91c944

    SHA1

    4ee5639fe6d5793829fed37fde062a109e4514c0

    SHA256

    69faddccc223439585a2dfd73cff7d14b17c17f1cb1a13091e9a306c2ffcd525

    SHA512

    d6026809c240f424390f8341a5c8d546eaaddbfff527385cb89cda38e3e3f6a96962c0a502ed3e5465f5440fdad42028f4028860e810d4c7413b3a0abdb68644

  • C:\Users\Admin\AppData\Roaming\3578282.exe
    MD5

    333024944f87b82e5df1ea3afe91c944

    SHA1

    4ee5639fe6d5793829fed37fde062a109e4514c0

    SHA256

    69faddccc223439585a2dfd73cff7d14b17c17f1cb1a13091e9a306c2ffcd525

    SHA512

    d6026809c240f424390f8341a5c8d546eaaddbfff527385cb89cda38e3e3f6a96962c0a502ed3e5465f5440fdad42028f4028860e810d4c7413b3a0abdb68644

  • C:\Users\Admin\AppData\Roaming\3607966.exe
    MD5

    665db314ea52d4331c8f0dd49cc0c9e5

    SHA1

    65fc408b35d057bad6c55ea7d06edbd5001bdcc1

    SHA256

    dd43e6de713f9b199855a8d101069560121223bd5c5cea999a80a96bd84f4b4a

    SHA512

    6b1d41db7e50c32f01c2b4d5b3851adc37816fcf8d8b3cbcb0f2602d3a10652a82a9376379bb437439d29292d6a48e6c0ae785a7fda93d2b604c84d3293068fc

  • C:\Users\Admin\AppData\Roaming\3607966.exe
    MD5

    665db314ea52d4331c8f0dd49cc0c9e5

    SHA1

    65fc408b35d057bad6c55ea7d06edbd5001bdcc1

    SHA256

    dd43e6de713f9b199855a8d101069560121223bd5c5cea999a80a96bd84f4b4a

    SHA512

    6b1d41db7e50c32f01c2b4d5b3851adc37816fcf8d8b3cbcb0f2602d3a10652a82a9376379bb437439d29292d6a48e6c0ae785a7fda93d2b604c84d3293068fc

  • C:\Users\Admin\AppData\Roaming\5243938.exe
    MD5

    afb53e37a817304cb9ebd143418159c1

    SHA1

    eb5db5e0a6755c0aed544d2a037ac22928bcdc8b

    SHA256

    17849797ee055a10567c6ca129583db58386385a978f74cd19c9c662f1dc1726

    SHA512

    475466219bc1b7d9451478969385997656a5cc367a9bc1e6d5b26f0e6559b529ba7452e6825a9de4587278af9c52c80bb1dbdca35ebf35d68a2ed7a98b2e261a

  • C:\Users\Admin\AppData\Roaming\WinHost\WinHoster.exe
    MD5

    a20e32791806c7b29070b95226b0e480

    SHA1

    8f2bac75ffabbe45770076047ded99f243622e5f

    SHA256

    df24005d51e393ed322bbf354c31485dab121ae0a445a754e08bb7912d9cd146

    SHA512

    6cf6b6aa3d4d82e7f202c5a0d3fd9a1085e05dd136e0532702e61de6e9a09b76eb5ec2add7f3a3e926e304aab928bbc639661cf6380133c8e00c387d4e9f2ca0

  • C:\Users\Admin\AppData\Roaming\WinHost\WinHoster.exe
    MD5

    a20e32791806c7b29070b95226b0e480

    SHA1

    8f2bac75ffabbe45770076047ded99f243622e5f

    SHA256

    df24005d51e393ed322bbf354c31485dab121ae0a445a754e08bb7912d9cd146

    SHA512

    6cf6b6aa3d4d82e7f202c5a0d3fd9a1085e05dd136e0532702e61de6e9a09b76eb5ec2add7f3a3e926e304aab928bbc639661cf6380133c8e00c387d4e9f2ca0

  • \Users\Admin\AppData\Roaming\WinHost\WinHoster.exe
    MD5

    a20e32791806c7b29070b95226b0e480

    SHA1

    8f2bac75ffabbe45770076047ded99f243622e5f

    SHA256

    df24005d51e393ed322bbf354c31485dab121ae0a445a754e08bb7912d9cd146

    SHA512

    6cf6b6aa3d4d82e7f202c5a0d3fd9a1085e05dd136e0532702e61de6e9a09b76eb5ec2add7f3a3e926e304aab928bbc639661cf6380133c8e00c387d4e9f2ca0

  • memory/624-107-0x0000000002B60000-0x0000000002B61000-memory.dmp
    Filesize

    4KB

  • memory/624-68-0x0000000000000000-mapping.dmp
  • memory/624-79-0x0000000000EC0000-0x0000000000EC1000-memory.dmp
    Filesize

    4KB

  • memory/624-72-0x0000000075951000-0x0000000075953000-memory.dmp
    Filesize

    8KB

  • memory/688-70-0x0000000000220000-0x0000000000221000-memory.dmp
    Filesize

    4KB

  • memory/688-73-0x00000000002E0000-0x0000000000329000-memory.dmp
    Filesize

    292KB

  • memory/688-76-0x0000000000340000-0x0000000000341000-memory.dmp
    Filesize

    4KB

  • memory/688-65-0x00000000000D0000-0x00000000000D1000-memory.dmp
    Filesize

    4KB

  • memory/688-102-0x0000000004490000-0x0000000004491000-memory.dmp
    Filesize

    4KB

  • memory/688-58-0x0000000000000000-mapping.dmp
  • memory/1480-97-0x0000000000B60000-0x0000000000B61000-memory.dmp
    Filesize

    4KB

  • memory/1480-81-0x0000000000000000-mapping.dmp
  • memory/1480-103-0x00000000029F0000-0x00000000029F1000-memory.dmp
    Filesize

    4KB

  • memory/1568-56-0x0000000000170000-0x0000000000171000-memory.dmp
    Filesize

    4KB

  • memory/1568-57-0x000000001AE50000-0x000000001AE52000-memory.dmp
    Filesize

    8KB

  • memory/1568-54-0x0000000000080000-0x0000000000081000-memory.dmp
    Filesize

    4KB

  • memory/1608-115-0x0000000000410000-0x0000000000411000-memory.dmp
    Filesize

    4KB

  • memory/1608-112-0x0000000000CC0000-0x0000000000CC1000-memory.dmp
    Filesize

    4KB

  • memory/1608-109-0x0000000000000000-mapping.dmp
  • memory/1668-74-0x0000000000530000-0x0000000000573000-memory.dmp
    Filesize

    268KB

  • memory/1668-64-0x0000000001050000-0x0000000001051000-memory.dmp
    Filesize

    4KB

  • memory/1668-61-0x0000000000000000-mapping.dmp
  • memory/1668-104-0x0000000001000000-0x0000000001001000-memory.dmp
    Filesize

    4KB

  • memory/1668-71-0x00000000005D0000-0x00000000005D1000-memory.dmp
    Filesize

    4KB

  • memory/1668-75-0x0000000000590000-0x0000000000591000-memory.dmp
    Filesize

    4KB

  • memory/1716-95-0x0000000000250000-0x0000000000251000-memory.dmp
    Filesize

    4KB

  • memory/1716-90-0x0000000000B10000-0x0000000000B11000-memory.dmp
    Filesize

    4KB

  • memory/1716-83-0x0000000000000000-mapping.dmp
  • memory/1716-105-0x0000000004820000-0x0000000004821000-memory.dmp
    Filesize

    4KB

  • memory/1944-106-0x00000000048E0000-0x00000000048E1000-memory.dmp
    Filesize

    4KB

  • memory/1944-87-0x0000000000000000-mapping.dmp
  • memory/1944-98-0x0000000000310000-0x0000000000311000-memory.dmp
    Filesize

    4KB

  • memory/1944-101-0x00000000003C0000-0x00000000003C1000-memory.dmp
    Filesize

    4KB

  • memory/1944-91-0x0000000000970000-0x0000000000971000-memory.dmp
    Filesize

    4KB

  • memory/1944-100-0x0000000000320000-0x0000000000368000-memory.dmp
    Filesize

    288KB