Analysis

  • max time kernel
    106s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    07-06-2021 05:42

General

  • Target

    MID REF. QT-MID19=11777.exe

  • Size

    991KB

  • MD5

    39082bcd7e25ae956fccb7e941d5256d

  • SHA1

    8b4f9fd2198af765dcce75c0222919c638e4fa29

  • SHA256

    05233a50ac2c427372ab8475a2f4dc5f031f87af0cc916dc824a2c66837afc4e

  • SHA512

    dff7aba7f2e5bb65d1aa506a1f6770f4f7761aa17f28bfcdaca407b0aa7ae3b6bf0fd3599fc0dd979418313c4aa26930aec99ed89ba420811cdce9010940f41c

Malware Config

Extracted

Family

revengerat

Botnet

DEGRACE

C2

77.247.110.178:5040

Mutex

RV_MUTEX-MB4S0YIGA6UFWH10GXQLHP

Signatures

  • RevengeRAT

    Remote-access trojan with a wide range of capabilities.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MID REF. QT-MID19=11777.exe
    "C:\Users\Admin\AppData\Local\Temp\MID REF. QT-MID19=11777.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2188
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UFyRUWFip" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAE42.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3420
    • C:\Users\Admin\AppData\Local\Temp\MID REF. QT-MID19=11777.exe
      "C:\Users\Admin\AppData\Local\Temp\MID REF. QT-MID19=11777.exe"
      2⤵
      • Checks processor information in registry
      PID:1340

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\MID REF. QT-MID19=11777.exe.log
    MD5

    0c2899d7c6746f42d5bbe088c777f94c

    SHA1

    622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

    SHA256

    5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

    SHA512

    ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

  • C:\Users\Admin\AppData\Local\Temp\tmpAE42.tmp
    MD5

    49ac710e6127619ab5575ae0e59d54b1

    SHA1

    3185da9749e377bf02d9ab8f15fcff7eafb70ac5

    SHA256

    baea4de1ac873b08a243cae4931594cdc86c5ac1461d8e759b48f70e2e8d2f9d

    SHA512

    00aa2765a07888434c841c795acfa040afd99b6f607157482cc302340bfd194b012ee407a43dcb6b7a93c88af0544a82a77fc43186fe95fa1f14252c5e109270

  • memory/1340-134-0x0000000002960000-0x0000000002961000-memory.dmp
    Filesize

    4KB

  • memory/1340-132-0x0000000004F00000-0x0000000004F01000-memory.dmp
    Filesize

    4KB

  • memory/1340-127-0x000000000040687E-mapping.dmp
  • memory/1340-126-0x0000000000400000-0x000000000040C000-memory.dmp
    Filesize

    48KB

  • memory/2188-119-0x0000000004C30000-0x0000000004C31000-memory.dmp
    Filesize

    4KB

  • memory/2188-122-0x0000000005120000-0x0000000005184000-memory.dmp
    Filesize

    400KB

  • memory/2188-123-0x0000000007E80000-0x0000000007E99000-memory.dmp
    Filesize

    100KB

  • memory/2188-121-0x0000000004E60000-0x0000000004E7E000-memory.dmp
    Filesize

    120KB

  • memory/2188-120-0x0000000004E90000-0x0000000004E91000-memory.dmp
    Filesize

    4KB

  • memory/2188-114-0x00000000002D0000-0x00000000002D1000-memory.dmp
    Filesize

    4KB

  • memory/2188-118-0x0000000004B60000-0x0000000004BF2000-memory.dmp
    Filesize

    584KB

  • memory/2188-117-0x0000000004C90000-0x0000000004C91000-memory.dmp
    Filesize

    4KB

  • memory/2188-116-0x0000000005190000-0x0000000005191000-memory.dmp
    Filesize

    4KB

  • memory/3420-124-0x0000000000000000-mapping.dmp