Overview

overview

9

Static

static

7

barmah.exe

windows10_x64

9

barmah.exe

windows11_x64

Analysis

  • max time kernel
    95s
  • max time network
    78s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    12-01-2022 18:34

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General

  • Target

    barmah.exe

  • Size

    2.6MB

  • MD5

    78d57a85010f954da7fe729449e2eaea

  • SHA1

    3a2deacbdd3f43d35feddb0a09477cbcade95ac3

  • SHA256

    5a3654dee85aae7f1644793e0c54dcb6948ab9d9b88d04c51b4fa1a18fd9a3f0

  • SHA512

    1205c69b215054e37f0d5cddeca95ef80d9897a0667fda03f8908f76cb38b67b689409f4b6193bd543928acff4e26a3448ea8db517628b78bb112878dcbe7c28

Score
9/10
evasionthemidatrojan

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
    evasion
  • Executes dropped EXE 1 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Themida packer 10 IoCs

    Detects Themida, an advanced Windows software protection system.

    themida
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
    evasiontrojan
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Kills process with taskkill 2 IoCs
    evasion
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 60 IoCs
  • Suspicious use of SendNotifyMessage 60 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\barmah.exe
    "C:\Users\Admin\AppData\Local\Temp\barmah.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4144
    • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
      "C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe"
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      PID:4124
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Drops file in Windows directory
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:4080
  • C:\Windows\System32\taskkill.exe
    "C:\Windows\System32\taskkill.exe" -f -im wininit.exe
    1⤵
    • Kills process with taskkill
    • Suspicious use of AdjustPrivilegeToken
    PID:2504
  • C:\Windows\System32\taskkill.exe
    "C:\Windows\System32\taskkill.exe" wininit.exe
    1⤵
    • Kills process with taskkill
    PID:3016

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
    MD5

    78d57a85010f954da7fe729449e2eaea

    SHA1

    3a2deacbdd3f43d35feddb0a09477cbcade95ac3

    SHA256

    5a3654dee85aae7f1644793e0c54dcb6948ab9d9b88d04c51b4fa1a18fd9a3f0

    SHA512

    1205c69b215054e37f0d5cddeca95ef80d9897a0667fda03f8908f76cb38b67b689409f4b6193bd543928acff4e26a3448ea8db517628b78bb112878dcbe7c28

    Download Submit
  • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
    MD5

    78d57a85010f954da7fe729449e2eaea

    SHA1

    3a2deacbdd3f43d35feddb0a09477cbcade95ac3

    SHA256

    5a3654dee85aae7f1644793e0c54dcb6948ab9d9b88d04c51b4fa1a18fd9a3f0

    SHA512

    1205c69b215054e37f0d5cddeca95ef80d9897a0667fda03f8908f76cb38b67b689409f4b6193bd543928acff4e26a3448ea8db517628b78bb112878dcbe7c28

    Download Submit
  • memory/4124-124-0x0000000000010000-0x00000000006F0000-memory.dmp
    Filesize

    6.9MB

    Download
  • memory/4124-120-0x0000000000000000-mapping.dmp
    Download
  • memory/4124-123-0x0000000000010000-0x00000000006F0000-memory.dmp
    Filesize

    6.9MB

    Download
  • memory/4124-125-0x0000000076FF0000-0x000000007717E000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/4124-126-0x0000000000010000-0x00000000006F0000-memory.dmp
    Filesize

    6.9MB

    Download
  • memory/4124-127-0x0000000000010000-0x00000000006F0000-memory.dmp
    Filesize

    6.9MB

    Download
  • memory/4144-118-0x0000000000270000-0x0000000000950000-memory.dmp
    Filesize

    6.9MB

    Download
  • memory/4144-119-0x0000000000270000-0x0000000000950000-memory.dmp
    Filesize

    6.9MB

    Download
  • memory/4144-117-0x0000000076FF0000-0x000000007717E000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/4144-116-0x0000000000270000-0x0000000000950000-memory.dmp
    Filesize

    6.9MB

    Download
  • memory/4144-115-0x0000000000270000-0x0000000000950000-memory.dmp
    Filesize

    6.9MB

    Download