cobaltstrike | 4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643

General

Target

4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe
Size

1.4MB
MD5

8632dc9b2509a9faa755c15d79dca941
SHA1

48607c2afef429348bf289da7c510cdc61c219b1
SHA256

4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643
SHA512

dcb577c8c409493b7e47684c93a550fffde5500e9882deb155b1e8b48529f6a9bc3814c4c346ff70fb3e68b35afb67441f24159d7ad4a6cde090005fa1b5c5e7
SSDEEP

24576:Kz5zEjzXBp36GndLvAOCOdXVQUnyrUKfFrz3PGRXbWhoN4P9Tzr+JrSnlaNUsXmz:EejzXBp9n5miwUqzPUbWSa6pNUfRK

Score

10^/10

cobaltstrike metasploit backdoor persistence trojan

Malware Config

Extracted

Family

metasploit

Version

encoder/shikata_ga_nai

Signatures

Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
trojan backdoor cobaltstrike
MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit
Executes dropped EXE 1 IoCs

Processes:

theYNC.com.exe

pid process

3132 theYNC.com.exe

pid	process
3132	theYNC.com.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ = "\"\""	4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe

description	pid	process	target process
PID 2280 set thread context of 2012	2280	4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe	Cvtres.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 2 IoCs

Processes:

4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe

pid	process
2280	4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe
2280	4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe

description pid process

Token: SeDebugPrivilege 2280 4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe

description	pid	process
Token: SeDebugPrivilege	2280	4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe

description	pid	process	target process
PID 2280 wrote to memory of 3132	2280	4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe	theYNC.com.exe
PID 2280 wrote to memory of 3132	2280	4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe	theYNC.com.exe
PID 2280 wrote to memory of 2012	2280	4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe	Cvtres.exe
PID 2280 wrote to memory of 2012	2280	4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe	Cvtres.exe
PID 2280 wrote to memory of 2012	2280	4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe	Cvtres.exe
PID 2280 wrote to memory of 2012	2280	4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe	Cvtres.exe
PID 2280 wrote to memory of 2012	2280	4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe	Cvtres.exe
PID 2280 wrote to memory of 2012	2280	4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe	Cvtres.exe
PID 2280 wrote to memory of 2012	2280	4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe	Cvtres.exe
PID 2280 wrote to memory of 2012	2280	4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe	Cvtres.exe
PID 2280 wrote to memory of 2012	2280	4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe	Cvtres.exe
PID 2280 wrote to memory of 2012	2280	4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe	Cvtres.exe

C:\Users\Admin\AppData\Local\Temp\4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe
"C:\Users\Admin\AppData\Local\Temp\4a527cb44a831f0f2ba4bebdd0206ab03479f3b57bcd149510696053faed7643.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Users\Admin\AppData\Local\Temp\theYNC.com.exe
  "C:\Users\Admin\AppData\Local\Temp\theYNC.com.exe"
  2⤵
  - Executes dropped EXE
  PID:3132
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\Cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\Cvtres.exe"
  2⤵
  PID:2012

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\theYNC.com.exe

Filesize
245KB

MD5
f356cb1e06242e5f221aa20cf33a044a

SHA1
75715369757ea20f51791a4c5fb3e6daf407611a

SHA256
648cfca36bcd7ad8ae0cb623a7edf04196b7490eebec364b586fb37428214f96

SHA512
cd6673482fa6c7d0070f54d53932781a8e27537cd18b067488b607d3f3cb88c88754e5f3ec499b207ef210ca0e3e4b687a7a9eb09fe11f0123ed5b0742aa5a34

Download Submit
C:\Users\Admin\AppData\Local\Temp\theYNC.com.exe

Filesize
245KB

MD5
f356cb1e06242e5f221aa20cf33a044a

SHA1
75715369757ea20f51791a4c5fb3e6daf407611a

SHA256
648cfca36bcd7ad8ae0cb623a7edf04196b7490eebec364b586fb37428214f96

SHA512
cd6673482fa6c7d0070f54d53932781a8e27537cd18b067488b607d3f3cb88c88754e5f3ec499b207ef210ca0e3e4b687a7a9eb09fe11f0123ed5b0742aa5a34

Download Submit
memory/2012-137-0x0000000000000000-mapping.dmp

Download
memory/2012-138-0x0000000000400000-0x00000000004EF000-memory.dmp

Filesize
956KB

Download
memory/2012-141-0x0000000000400000-0x00000000004EEB38-memory.dmp

Filesize
954KB

Download
memory/2012-140-0x0000000000400000-0x00000000004EF000-memory.dmp

Filesize
956KB

Download
memory/2012-144-0x0000000000AC0000-0x0000000000BA0000-memory.dmp

Filesize
896KB

Download
memory/2012-143-0x0000000000400000-0x00000000004EEB38-memory.dmp

Filesize
954KB

Download
memory/2280-132-0x0000000074E50000-0x0000000075401000-memory.dmp

Filesize
5.7MB

Download
memory/2280-133-0x0000000074E50000-0x0000000075401000-memory.dmp

Filesize
5.7MB

Download
memory/3132-134-0x0000000000000000-mapping.dmp

Download
memory/3132-142-0x00007FFEC6A80000-0x00007FFEC74B6000-memory.dmp

Filesize
10.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads