cobaltstrike | ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3

Analysis

max time kernel
148s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
29-11-2022 23:13

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General

Target

ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3.exe
Size

219KB
MD5

c6e1d105ee9764f2ed9bdebfc7cc6fd6
SHA1

92749fc82c852402cd9b05306bec72a5932a2775
SHA256

ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3
SHA512

a5b9b98699dbadb3764c973f68586601d175d7e79d42d3c626757b70c1f2877d96410d08ffc91aefd3252ea59d9f493d0e6d665ac7a46b09afea1f547ebdc7e5
SSDEEP

3072:6C/gLTTyRy7LfS2glhRXJehyBJUEoJADzvCShF1Dg81S2glhRXJehyBJUEoJA+:1YLTfPi9JehNADLC6FBg8Bi9JehNA+

Score

10^/10

cobaltstrike backdoor persistence trojan

Malware Config

Signatures

Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
trojan backdoor cobaltstrike
Executes dropped EXE 1 IoCs

Processes:

CacheMgr.exe

pid process

3312 CacheMgr.exe

pid	process
3312	CacheMgr.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run	ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\StubPath = "\"C:\\Setup\\CacheMgr.exe\" -as"	ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3.exe

description	pid	process	target process
PID 4984 wrote to memory of 5044	4984	ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3.exe	cmd.exe
PID 4984 wrote to memory of 5044	4984	ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3.exe	cmd.exe
PID 4984 wrote to memory of 5044	4984	ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3.exe	cmd.exe
PID 4984 wrote to memory of 4920	4984	ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3.exe	cmd.exe
PID 4984 wrote to memory of 4920	4984	ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3.exe	cmd.exe
PID 4984 wrote to memory of 4920	4984	ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3.exe	cmd.exe
PID 4984 wrote to memory of 3312	4984	ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3.exe	CacheMgr.exe
PID 4984 wrote to memory of 3312	4984	ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3.exe	CacheMgr.exe
PID 4984 wrote to memory of 3312	4984	ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3.exe	CacheMgr.exe

C:\Users\Admin\AppData\Local\Temp\ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3.exe
"C:\Users\Admin\AppData\Local\Temp\ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4984
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /q /c md "C:\Setup"
  2⤵
  PID:5044
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /q /c copy "C:\Users\Admin\AppData\Local\Temp\ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3.exe" "C:\Setup\CacheMgr.exe"
  2⤵
  PID:4920
- C:\Setup\CacheMgr.exe
  "C:\Setup\CacheMgr.exe" -as
  2⤵
  - Executes dropped EXE
  PID:3312

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Setup\CacheMgr.exe

Filesize
219KB

MD5
c6e1d105ee9764f2ed9bdebfc7cc6fd6

SHA1
92749fc82c852402cd9b05306bec72a5932a2775

SHA256
ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3

SHA512
a5b9b98699dbadb3764c973f68586601d175d7e79d42d3c626757b70c1f2877d96410d08ffc91aefd3252ea59d9f493d0e6d665ac7a46b09afea1f547ebdc7e5

Download Submit
C:\Setup\CacheMgr.exe

Filesize
219KB

MD5
c6e1d105ee9764f2ed9bdebfc7cc6fd6

SHA1
92749fc82c852402cd9b05306bec72a5932a2775

SHA256
ff083470f92e221192d56ae86fb98d81070c4096c549c4cb69c5e8b5ba04bed3

SHA512
a5b9b98699dbadb3764c973f68586601d175d7e79d42d3c626757b70c1f2877d96410d08ffc91aefd3252ea59d9f493d0e6d665ac7a46b09afea1f547ebdc7e5

Download Submit
memory/3312-134-0x0000000000000000-mapping.dmp

Download
memory/3312-138-0x00000000001D0000-0x00000000001E6000-memory.dmp

Filesize
88KB

Download
memory/3312-139-0x00000000001D0000-0x00000000001E6000-memory.dmp

Filesize
88KB

Download
memory/4920-133-0x0000000000000000-mapping.dmp

Download
memory/4984-137-0x00000000004A0000-0x00000000004B6000-memory.dmp

Filesize
88KB

Download
memory/5044-132-0x0000000000000000-mapping.dmp

Download