cobaltstrike | a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82

General

Target

a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82.exe
Size

120KB
MD5

c4a4f8fd82dae7b88f23ec2a8cc5f011
SHA1

b21f539c469bd6c078cec2f68ccd57d482910ee4
SHA256

a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82
SHA512

6d96817be9189e3dfb7a28ce538dcf34fb9ce18988e39789a9bf12373b8c5e0f440dc83b147d31d4b8c9dc699017e3f62bed4e86049bbbc19cd1bab0043c94f8
SSDEEP

1536:pX2tAh15hxrmf7VlBSBzD7TbNau3doRzEg0H86Lx8CAcf+SuqGMLefNe6WE5RXQ:pv5hm7VmBP7PtReQJUhMLgEE5RX

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

pid	Process
560	CacheMgr.exe

Loads dropped DLL 1 IoCs

pid	Process
2028	a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run	a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\StubPath = "\"C:\\ProgramData\\CacheMgr.exe\" -as"	a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 2040	2028	a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82.exe	28
PID 2028 wrote to memory of 2040	2028	a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82.exe	28
PID 2028 wrote to memory of 2040	2028	a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82.exe	28
PID 2028 wrote to memory of 2040	2028	a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82.exe	28
PID 2028 wrote to memory of 560	2028	a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82.exe	30
PID 2028 wrote to memory of 560	2028	a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82.exe	30
PID 2028 wrote to memory of 560	2028	a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82.exe	30
PID 2028 wrote to memory of 560	2028	a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82.exe	30

C:\Users\Admin\AppData\Local\Temp\a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82.exe
"C:\Users\Admin\AppData\Local\Temp\a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82.exe" "C:\ProgramData\CacheMgr.exe"
  2⤵
  PID:2040
- C:\ProgramData\CacheMgr.exe
  "C:\ProgramData\CacheMgr.exe" -as
  2⤵
  - Executes dropped EXE
  PID:560

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\CacheMgr.exe

Filesize
120KB

MD5
c4a4f8fd82dae7b88f23ec2a8cc5f011

SHA1
b21f539c469bd6c078cec2f68ccd57d482910ee4

SHA256
a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82

SHA512
6d96817be9189e3dfb7a28ce538dcf34fb9ce18988e39789a9bf12373b8c5e0f440dc83b147d31d4b8c9dc699017e3f62bed4e86049bbbc19cd1bab0043c94f8

Download Submit
C:\ProgramData\CacheMgr.exe

Filesize
120KB

MD5
c4a4f8fd82dae7b88f23ec2a8cc5f011

SHA1
b21f539c469bd6c078cec2f68ccd57d482910ee4

SHA256
a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82

SHA512
6d96817be9189e3dfb7a28ce538dcf34fb9ce18988e39789a9bf12373b8c5e0f440dc83b147d31d4b8c9dc699017e3f62bed4e86049bbbc19cd1bab0043c94f8

Download Submit
\ProgramData\CacheMgr.exe

Filesize
120KB

MD5
c4a4f8fd82dae7b88f23ec2a8cc5f011

SHA1
b21f539c469bd6c078cec2f68ccd57d482910ee4

SHA256
a7c598f10afed1442a46767ea27b7d139228dff34f0aea08ed2115cde6deff82

SHA512
6d96817be9189e3dfb7a28ce538dcf34fb9ce18988e39789a9bf12373b8c5e0f440dc83b147d31d4b8c9dc699017e3f62bed4e86049bbbc19cd1bab0043c94f8

Download Submit
memory/560-66-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/560-73-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/560-72-0x0000000000020000-0x0000000000036000-memory.dmp

Filesize
88KB

Download
memory/560-71-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/560-70-0x0000000000020000-0x0000000000036000-memory.dmp

Filesize
88KB

Download
memory/560-69-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2028-64-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2028-65-0x0000000000020000-0x0000000000036000-memory.dmp

Filesize
88KB

Download
memory/2028-55-0x0000000075531000-0x0000000075533000-memory.dmp

Filesize
8KB

Download
memory/2028-58-0x0000000000020000-0x0000000000036000-memory.dmp

Filesize
88KB

Download
memory/2028-57-0x0000000000480000-0x0000000000580000-memory.dmp

Filesize
1024KB

Download
memory/2028-56-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download

Analysis

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