crimsonrat | 1283da4519c11d20a9c535d2886d6e60706d62aaaa8fcdbc55eeb0ee84f9805a

Analysis

max time kernel
146s
max time network
147s
platform
windows7_x64
resource
win7-en-20211208
submitted
30-01-2022 16:23

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General

Target

for u krishna my pic and video fldr/for u krishna my pic and video folder.exe
Size

1.0MB
MD5

7cf75ee5180b4896f93b762ea0057e04
SHA1

633004d24a7dca046f10e419cd83728fd6be4a77
SHA256

0ec4af0779080f9b0b534a6b1b6f1f09ee205cf49a4334046d683d1cce84d3a0
SHA512

4019a01efd5be0a0aef9708e4c359147efbdb4066da7f2418ea5632686ddaac29247d201b5cf154276d22dad7c7b8d61523cb049bde9bd6048133a06ee4c1eee

Score

10^/10

crimsonrat rat

Malware Config

Signatures

CrimsonRAT Main Payload 2 IoCs

resource	yara_rule
behavioral1/files/0x00060000000138e6-58.dat	family_crimsonrat
behavioral1/files/0x00060000000138e6-59.dat	family_crimsonrat

CrimsonRat
Crimson RAT is a malware linked to a Pakistani-linked threat actor.
rat crimsonrat

Executes dropped EXE 1 IoCs

pid	Process
112	rvmthgarna.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Dharvdv\rvmthgarna.exe	for u krishna my pic and video folder.exe
File opened for modification	C:\PROGRA~3\Dharvdv\rvmthgarna.exe	for u krishna my pic and video folder.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1276 wrote to memory of 112	1276	for u krishna my pic and video folder.exe	27
PID 1276 wrote to memory of 112	1276	for u krishna my pic and video folder.exe	27
PID 1276 wrote to memory of 112	1276	for u krishna my pic and video folder.exe	27

C:\Users\Admin\AppData\Local\Temp\for u krishna my pic and video fldr\for u krishna my pic and video folder.exe
"C:\Users\Admin\AppData\Local\Temp\for u krishna my pic and video fldr\for u krishna my pic and video folder.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1276
- C:\ProgramData\Dharvdv\rvmthgarna.exe
  "C:\ProgramData\Dharvdv\rvmthgarna.exe"
  2⤵
  - Executes dropped EXE
  PID:112

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/112-60-0x000007FEF15B0000-0x000007FEF2646000-memory.dmp

Filesize
16.6MB

Download
memory/112-61-0x0000000000DD0000-0x0000000000E50000-memory.dmp

Filesize
512KB

Download
memory/112-62-0x0000000000DD0000-0x0000000000E50000-memory.dmp

Filesize
512KB

Download
memory/1276-55-0x0000000001F90000-0x0000000001F92000-memory.dmp

Filesize
8KB

Download
memory/1276-56-0x000007FEF15B0000-0x000007FEF2646000-memory.dmp

Filesize
16.6MB

Download
memory/1276-57-0x0000000001F96000-0x0000000001FB5000-memory.dmp

Filesize
124KB

Download