crimsonrat | e63cd1c60fd8d9f2ab6714f371958621f9d500bb09ba3569d0435f8f38960584

Analysis

max time kernel
165s
max time network
186s
platform
windows10_x64
resource
win10-en-20211208
submitted
21/01/2022, 22:57

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General

Target

e63cd1c60fd8d9f2ab6714f371958621f9d500bb09ba3569d0435f8f38960584.exe
Size

89KB
MD5

c2fd45f6342fe183749eed303010965b
SHA1

7bc4e9aba5a79504ab85f15da2f7d15661777394
SHA256

e63cd1c60fd8d9f2ab6714f371958621f9d500bb09ba3569d0435f8f38960584
SHA512

ebba30fb01bee91e02c2aae40cb6bbe7e6c20185b7d624ac96375ffd8e547ee07ed98ceddbeecb5c941c8c1318f951379d08873765e5e28f6449f94d718f64f6

Score

10^/10

crimsonrat rat

Malware Config

Signatures

CrimsonRAT Main Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000500000001ab20-117.dat	family_crimsonrat
behavioral2/files/0x000500000001ab20-118.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
1716	dhrwarhsav.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 2 IoCs

description	pid	Process	procid_target
PID 2628 wrote to memory of 1716	2628	e63cd1c60fd8d9f2ab6714f371958621f9d500bb09ba3569d0435f8f38960584.exe	72
PID 2628 wrote to memory of 1716	2628	e63cd1c60fd8d9f2ab6714f371958621f9d500bb09ba3569d0435f8f38960584.exe	72

C:\Users\Admin\AppData\Local\Temp\e63cd1c60fd8d9f2ab6714f371958621f9d500bb09ba3569d0435f8f38960584.exe
"C:\Users\Admin\AppData\Local\Temp\e63cd1c60fd8d9f2ab6714f371958621f9d500bb09ba3569d0435f8f38960584.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2628
- C:\ProgramData\Detharis\dhrwarhsav.exe
  "C:\ProgramData\Detharis\dhrwarhsav.exe"
  2⤵
  - Executes dropped EXE
  PID:1716

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/1716-119-0x0000000003080000-0x0000000003082000-memory.dmp

Filesize
8KB

Download
memory/1716-122-0x0000000003082000-0x0000000003084000-memory.dmp

Filesize
8KB

Download
memory/2628-115-0x0000000002750000-0x0000000002752000-memory.dmp

Filesize
8KB

Download
memory/2628-120-0x0000000002752000-0x0000000002754000-memory.dmp

Filesize
8KB

Download