cobaltstrike | 20a4b1ce3da8e5c6a68f2a62f8f3aaabf4dd578cae1326c309958ea220932de0

General

Target

20a4b1ce3da8e5c6a68f2a62f8f3aaabf4dd578cae1326c309958ea220932de0.exe
Size

120KB
MD5

0295f705f795ee84a2697e4cc778f042
SHA1

f1ac9177a0a2f5fa1bae6f26141eeccf7e606e8d
SHA256

20a4b1ce3da8e5c6a68f2a62f8f3aaabf4dd578cae1326c309958ea220932de0
SHA512

2682fccf871fe03fd5fbe47c48cec1325b317bca37d3010335c36031c70a81170bdb9ca90b81f3e8f4cf68a27e95d7101e05b94e027e6ce04158e77785391d26
SSDEEP

1536:2X2tAh15hxrmf7VlBSBzD7TbNau3doRzEg0H86Lx8CAcf+SuqGMLefNe6WE5RXQ:0v5hm7VmBP7PtReQJUhMLgEE5RX

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
1512	CacheMgr.exe

Loads dropped DLL 1 IoCs

pid	Process
872	20a4b1ce3da8e5c6a68f2a62f8f3aaabf4dd578cae1326c309958ea220932de0.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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run	20a4b1ce3da8e5c6a68f2a62f8f3aaabf4dd578cae1326c309958ea220932de0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\StubPath = "\"C:\\ProgramData\\CacheMgr.exe\" -as"	20a4b1ce3da8e5c6a68f2a62f8f3aaabf4dd578cae1326c309958ea220932de0.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 872 wrote to memory of 1940	872	20a4b1ce3da8e5c6a68f2a62f8f3aaabf4dd578cae1326c309958ea220932de0.exe	15
PID 872 wrote to memory of 1940	872	20a4b1ce3da8e5c6a68f2a62f8f3aaabf4dd578cae1326c309958ea220932de0.exe	15
PID 872 wrote to memory of 1940	872	20a4b1ce3da8e5c6a68f2a62f8f3aaabf4dd578cae1326c309958ea220932de0.exe	15
PID 872 wrote to memory of 1940	872	20a4b1ce3da8e5c6a68f2a62f8f3aaabf4dd578cae1326c309958ea220932de0.exe	15
PID 872 wrote to memory of 1512	872	20a4b1ce3da8e5c6a68f2a62f8f3aaabf4dd578cae1326c309958ea220932de0.exe	30
PID 872 wrote to memory of 1512	872	20a4b1ce3da8e5c6a68f2a62f8f3aaabf4dd578cae1326c309958ea220932de0.exe	30
PID 872 wrote to memory of 1512	872	20a4b1ce3da8e5c6a68f2a62f8f3aaabf4dd578cae1326c309958ea220932de0.exe	30
PID 872 wrote to memory of 1512	872	20a4b1ce3da8e5c6a68f2a62f8f3aaabf4dd578cae1326c309958ea220932de0.exe	30

C:\Users\Admin\AppData\Local\Temp\20a4b1ce3da8e5c6a68f2a62f8f3aaabf4dd578cae1326c309958ea220932de0.exe
"C:\Users\Admin\AppData\Local\Temp\20a4b1ce3da8e5c6a68f2a62f8f3aaabf4dd578cae1326c309958ea220932de0.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:872
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\20a4b1ce3da8e5c6a68f2a62f8f3aaabf4dd578cae1326c309958ea220932de0.exe" "C:\ProgramData\CacheMgr.exe"
  2⤵
  PID:1940
- C:\ProgramData\CacheMgr.exe
  "C:\ProgramData\CacheMgr.exe" -as
  2⤵
  - Executes dropped EXE
  PID:1512

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
21KB

MD5
ab860db159f50e3c1cd9361fb20736f6

SHA1
bd8ffdc451fdcc6913ceaa1ff5487e2f2279e021

SHA256
8d4e2c14c5bace632a71a95eff973dfa3f0ef63517823d90b0593cc1959bbf54

SHA512
a5fee891fe85fd35bd1ca22e80590f31bca83cd7b62cddcbb1faeef7d4eabfa5291b6e950c130381c1eaf9a30bb953a24b15bbe1dd63b3913365a1d82c178587

Download Submit
C:\ProgramData\CacheMgr.exe

Filesize
42KB

MD5
4695384bb340f374131f45e1e26b9645

SHA1
66341df1e211a3bb03b863299fbb12aa954e5aed

SHA256
245999ff1089d65760675fb6e1941edbba716668ccef984994028966177fef58

SHA512
35e15081a1ee19563e4ebfdcfe45478822aebe2f2da67148b6daabb41a1c81e03e5a3923ceb2095dee21f3a8d7b47049989e5d7f8d4d04eb5a6f4bc8f1420119

Download Submit
\ProgramData\CacheMgr.exe

Filesize
19KB

MD5
7b52d847495ba60893719ed91f5cb4e5

SHA1
39d405600c5494dede664b1954feb9c1f906c1c7

SHA256
357e6ef160d6884c5ae769b6dc29645a01f16e7ac3c79853858aa5b69b1b88a3

SHA512
755d95bd96455d98de9b9f2a9a4c57432cb9c273ec352dd056d492862a710ce5ae761bc6ada4801b8e1c237229e233bfc538ec1c82c576068bdc4ddeeb84419e

Download Submit
memory/872-58-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/872-54-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/872-64-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/872-66-0x0000000000020000-0x0000000000036000-memory.dmp

Filesize
88KB

Download
memory/872-59-0x0000000000020000-0x0000000000036000-memory.dmp

Filesize
88KB

Download
memory/872-56-0x0000000076181000-0x0000000076183000-memory.dmp

Filesize
8KB

Download
memory/1512-70-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1512-69-0x00000000001C0000-0x00000000001D6000-memory.dmp

Filesize
88KB

Download
memory/1512-68-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/1512-71-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/1512-72-0x00000000001C0000-0x00000000001D6000-memory.dmp

Filesize
88KB

Download

Analysis

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