cobaltstrike | b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa

General

Target

b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe
Size

115KB
MD5

cd1dc6c7851f6c43b87c427848c9bef9
SHA1

4e70004a0753c1f6ce23e1f0e4f565843574d3da
SHA256

b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa
SHA512

1bec38722b2fafeb83f04173b5f26e9fc61eb975c70ac8bf73ad367662957613d0bb99afd3c890974f5954f5bd56548877f533c35a2cd400192cfb1f9210ceb5
SSDEEP

1536:+++fq6M5b9NqTxV67wAInyAeG+90MHJaOsp1gMIEELZ2G6CNgRtOOOOOOOOEQ6h:+++VMoTxyi9e7O1IXLoSWRqX

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

516 CacheMgr.exe
Loads dropped DLL 1 IoCs

Processes:

b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe

pid process

1500 b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe

pid	process
516	CacheMgr.exe

pid	process
1500	b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run	b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\StubPath = "\"C:\\Users\\Admin\\AppData\\Roaming\\CacheMgr.exe\" -as"	b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe

description	pid	process	target process
PID 1500 wrote to memory of 1928	1500	b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe	cmd.exe
PID 1500 wrote to memory of 1928	1500	b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe	cmd.exe
PID 1500 wrote to memory of 1928	1500	b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe	cmd.exe
PID 1500 wrote to memory of 1928	1500	b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe	cmd.exe
PID 1500 wrote to memory of 516	1500	b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe	CacheMgr.exe
PID 1500 wrote to memory of 516	1500	b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe	CacheMgr.exe
PID 1500 wrote to memory of 516	1500	b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe	CacheMgr.exe
PID 1500 wrote to memory of 516	1500	b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe	CacheMgr.exe

C:\Users\Admin\AppData\Local\Temp\b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe
"C:\Users\Admin\AppData\Local\Temp\b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1500

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c copy "C:\Users\Admin\AppData\Local\Temp\b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa.exe" "C:\Users\Admin\AppData\Roaming\CacheMgr.exe"
2⤵
PID:1928

C:\Users\Admin\AppData\Roaming\CacheMgr.exe
"C:\Users\Admin\AppData\Roaming\CacheMgr.exe" -as
2⤵
- Executes dropped EXE
PID:516

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\CacheMgr.exe
Filesize
115KB

MD5
cd1dc6c7851f6c43b87c427848c9bef9

SHA1
4e70004a0753c1f6ce23e1f0e4f565843574d3da

SHA256
b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa

SHA512
1bec38722b2fafeb83f04173b5f26e9fc61eb975c70ac8bf73ad367662957613d0bb99afd3c890974f5954f5bd56548877f533c35a2cd400192cfb1f9210ceb5

Download Submit
C:\Users\Admin\AppData\Roaming\CacheMgr.exe
Filesize
115KB

MD5
cd1dc6c7851f6c43b87c427848c9bef9

SHA1
4e70004a0753c1f6ce23e1f0e4f565843574d3da

SHA256
b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa

SHA512
1bec38722b2fafeb83f04173b5f26e9fc61eb975c70ac8bf73ad367662957613d0bb99afd3c890974f5954f5bd56548877f533c35a2cd400192cfb1f9210ceb5

Download Submit
\Users\Admin\AppData\Roaming\CacheMgr.exe
Filesize
115KB

MD5
cd1dc6c7851f6c43b87c427848c9bef9

SHA1
4e70004a0753c1f6ce23e1f0e4f565843574d3da

SHA256
b2525e8d48a1cb4358ed8a0e8de33f4f4d539a21659183edf5590c3672c11ffa

SHA512
1bec38722b2fafeb83f04173b5f26e9fc61eb975c70ac8bf73ad367662957613d0bb99afd3c890974f5954f5bd56548877f533c35a2cd400192cfb1f9210ceb5

Download Submit
memory/516-66-0x0000000000670000-0x0000000000770000-memory.dmp

Filesize
1024KB

Download
memory/516-61-0x0000000000000000-mapping.dmp

Download
memory/516-67-0x0000000000020000-0x0000000000035000-memory.dmp

Filesize
84KB

Download
memory/516-68-0x0000000000670000-0x0000000000770000-memory.dmp

Filesize
1024KB

Download
memory/516-69-0x0000000000020000-0x0000000000035000-memory.dmp

Filesize
84KB

Download
memory/1500-58-0x0000000000020000-0x0000000000035000-memory.dmp

Filesize
84KB

Download
memory/1500-57-0x00000000003C0000-0x00000000004C0000-memory.dmp

Filesize
1024KB

Download
memory/1500-63-0x0000000000020000-0x0000000000035000-memory.dmp

Filesize
84KB

Download
memory/1500-55-0x0000000075D71000-0x0000000075D73000-memory.dmp

Filesize
8KB

Download
memory/1928-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing