cobaltstrike | b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc

General

Target

b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe
Size

307KB
MD5

3498c294883156b4076ce82826b1591d
SHA1

99167ba4c13df8c3da314ad8e257022539669c7f
SHA256

b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc
SHA512

96b24265da685ce6f14a9c979c67140befcc3d82fe8a4402edd5875040ded2fe562e85864506b384899e707d9b253421d56d7a1f0931c01eba5b76248d9dae5e
SSDEEP

6144:2qzIT72Y0S+zinYKTY1SQshfRPVQe1MZkIYSccr7wbstOEPECYeixlYGicMX:2Ck7SSpYsY1UMqMZJYSN7wbstOE8fve9

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:

qexoj.exe

pid process

980 qexoj.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1892 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe

pid process

904 b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe

pid	process
1892	cmd.exe

pid	process
904	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

qexoj.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\Currentversion\Run	qexoj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\{7BD94DA8-4FEF-AD4D-5225-887A4931AB67} = "C:\\Users\\Admin\\AppData\\Roaming\\Feju\\qexoj.exe"	qexoj.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe

description pid process target process

PID 904 set thread context of 1892 904 b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe cmd.exe

description	pid	process	target process
PID 904 set thread context of 1892	904	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe	cmd.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Privacy	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

qexoj.exe

pid	process
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe
980	qexoj.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exeqexoj.exe

description	pid	process	target process
PID 904 wrote to memory of 980	904	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe	qexoj.exe
PID 904 wrote to memory of 980	904	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe	qexoj.exe
PID 904 wrote to memory of 980	904	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe	qexoj.exe
PID 904 wrote to memory of 980	904	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe	qexoj.exe
PID 980 wrote to memory of 1228	980	qexoj.exe	taskhost.exe
PID 980 wrote to memory of 1228	980	qexoj.exe	taskhost.exe
PID 980 wrote to memory of 1228	980	qexoj.exe	taskhost.exe
PID 980 wrote to memory of 1228	980	qexoj.exe	taskhost.exe
PID 980 wrote to memory of 1228	980	qexoj.exe	taskhost.exe
PID 980 wrote to memory of 1368	980	qexoj.exe	Dwm.exe
PID 980 wrote to memory of 1368	980	qexoj.exe	Dwm.exe
PID 980 wrote to memory of 1368	980	qexoj.exe	Dwm.exe
PID 980 wrote to memory of 1368	980	qexoj.exe	Dwm.exe
PID 980 wrote to memory of 1368	980	qexoj.exe	Dwm.exe
PID 980 wrote to memory of 1416	980	qexoj.exe	Explorer.EXE
PID 980 wrote to memory of 1416	980	qexoj.exe	Explorer.EXE
PID 980 wrote to memory of 1416	980	qexoj.exe	Explorer.EXE
PID 980 wrote to memory of 1416	980	qexoj.exe	Explorer.EXE
PID 980 wrote to memory of 1416	980	qexoj.exe	Explorer.EXE
PID 980 wrote to memory of 904	980	qexoj.exe	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe
PID 980 wrote to memory of 904	980	qexoj.exe	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe
PID 980 wrote to memory of 904	980	qexoj.exe	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe
PID 980 wrote to memory of 904	980	qexoj.exe	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe
PID 980 wrote to memory of 904	980	qexoj.exe	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe
PID 904 wrote to memory of 1892	904	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe	cmd.exe
PID 904 wrote to memory of 1892	904	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe	cmd.exe
PID 904 wrote to memory of 1892	904	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe	cmd.exe
PID 904 wrote to memory of 1892	904	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe	cmd.exe
PID 904 wrote to memory of 1892	904	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe	cmd.exe
PID 904 wrote to memory of 1892	904	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe	cmd.exe
PID 904 wrote to memory of 1892	904	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe	cmd.exe
PID 904 wrote to memory of 1892	904	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe	cmd.exe
PID 904 wrote to memory of 1892	904	b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1416

C:\Users\Admin\AppData\Local\Temp\b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe
"C:\Users\Admin\AppData\Local\Temp\b7a449375a54c27c67232a59691ae2fc5a3751feea238f8e3dc89b367a2e5bcc.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
PID:904

C:\Users\Admin\AppData\Roaming\Feju\qexoj.exe
"C:\Users\Admin\AppData\Roaming\Feju\qexoj.exe"
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:980

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp81dc2727.bat"
3⤵
- Deletes itself
PID:1892

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1368

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1228

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp81dc2727.bat
Filesize
307B

MD5
8d527a06f227fc0000f404aa3a76f3a7

SHA1
3991d138750d2c6128655fce27832ff360433539

SHA256
d887e84eacd7c4880b4c0d3b8e15ad4830fdff8e1c93c71c7d6acc79cfdebf52

SHA512
e1db70b3f018a3203cf9fe70321980d8f863098748f1aafc2e1fe7a73c1951ad535c99848b1666aad571ae872d6d97b1d612da97afe2cecdff34f59d64d8e9be

Download Submit
C:\Users\Admin\AppData\Roaming\Feju\qexoj.exe
Filesize
307KB

MD5
a94f568ace7cd56604c543ff6fc7e104

SHA1
46956787d41c7dad3145545c60f0304f0d359a57

SHA256
dfea09ad21fe3367593f283d51d93821bd50085363e3b413e7e8eeb72e30a943

SHA512
270ba9d7394f0d79dc13a10e6e6f7ea16ec63ca04dcf9969e2d132604ab497b220e0d7009073a3df3386598b7dae303a579df6595fb23a6fe2c1330226e7d62d

Download Submit
C:\Users\Admin\AppData\Roaming\Feju\qexoj.exe
Filesize
307KB

MD5
a94f568ace7cd56604c543ff6fc7e104

SHA1
46956787d41c7dad3145545c60f0304f0d359a57

SHA256
dfea09ad21fe3367593f283d51d93821bd50085363e3b413e7e8eeb72e30a943

SHA512
270ba9d7394f0d79dc13a10e6e6f7ea16ec63ca04dcf9969e2d132604ab497b220e0d7009073a3df3386598b7dae303a579df6595fb23a6fe2c1330226e7d62d

Download Submit
\Users\Admin\AppData\Roaming\Feju\qexoj.exe
Filesize
307KB

MD5
a94f568ace7cd56604c543ff6fc7e104

SHA1
46956787d41c7dad3145545c60f0304f0d359a57

SHA256
dfea09ad21fe3367593f283d51d93821bd50085363e3b413e7e8eeb72e30a943

SHA512
270ba9d7394f0d79dc13a10e6e6f7ea16ec63ca04dcf9969e2d132604ab497b220e0d7009073a3df3386598b7dae303a579df6595fb23a6fe2c1330226e7d62d

Download Submit
memory/904-62-0x0000000000440000-0x0000000000490000-memory.dmp

Filesize
320KB

Download
memory/904-58-0x000000007EF60000-0x000000007EFA4000-memory.dmp

Filesize
272KB

Download
memory/904-99-0x000000007EF60000-0x000000007EFA4000-memory.dmp

Filesize
272KB

Download
memory/904-57-0x000000007EF60000-0x000000007EFA4000-memory.dmp

Filesize
272KB

Download
memory/904-54-0x0000000000900000-0x0000000000950000-memory.dmp

Filesize
320KB

Download
memory/904-100-0x0000000000440000-0x0000000000484000-memory.dmp

Filesize
272KB

Download
memory/904-56-0x000000007EF60000-0x000000007EFA4000-memory.dmp

Filesize
272KB

Download
memory/904-89-0x0000000000440000-0x0000000000484000-memory.dmp

Filesize
272KB

Download
memory/904-88-0x0000000000440000-0x0000000000484000-memory.dmp

Filesize
272KB

Download
memory/904-87-0x0000000000440000-0x0000000000484000-memory.dmp

Filesize
272KB

Download
memory/904-86-0x0000000000440000-0x0000000000484000-memory.dmp

Filesize
272KB

Download
memory/904-55-0x0000000076201000-0x0000000076203000-memory.dmp

Filesize
8KB

Download
memory/904-98-0x0000000000900000-0x0000000000950000-memory.dmp

Filesize
320KB

Download
memory/980-105-0x0000000000C80000-0x0000000000CD0000-memory.dmp

Filesize
320KB

Download
memory/980-101-0x000000007EF60000-0x000000007EFA4000-memory.dmp

Filesize
272KB

Download
memory/980-63-0x0000000000C80000-0x0000000000CD0000-memory.dmp

Filesize
320KB

Download
memory/980-60-0x0000000000000000-mapping.dmp

Download
memory/1228-71-0x0000000000330000-0x0000000000374000-memory.dmp

Filesize
272KB

Download
memory/1228-66-0x0000000000330000-0x0000000000374000-memory.dmp

Filesize
272KB

Download
memory/1228-69-0x0000000000330000-0x0000000000374000-memory.dmp

Filesize
272KB

Download
memory/1228-70-0x0000000000330000-0x0000000000374000-memory.dmp

Filesize
272KB

Download
memory/1228-68-0x0000000000330000-0x0000000000374000-memory.dmp

Filesize
272KB

Download
memory/1368-76-0x00000000001A0000-0x00000000001E4000-memory.dmp

Filesize
272KB

Download
memory/1368-77-0x00000000001A0000-0x00000000001E4000-memory.dmp

Filesize
272KB

Download
memory/1368-75-0x00000000001A0000-0x00000000001E4000-memory.dmp

Filesize
272KB

Download
memory/1368-74-0x00000000001A0000-0x00000000001E4000-memory.dmp

Filesize
272KB

Download
memory/1416-80-0x00000000021E0000-0x0000000002224000-memory.dmp

Filesize
272KB

Download
memory/1416-83-0x00000000021E0000-0x0000000002224000-memory.dmp

Filesize
272KB

Download
memory/1416-82-0x00000000021E0000-0x0000000002224000-memory.dmp

Filesize
272KB

Download
memory/1416-81-0x00000000021E0000-0x0000000002224000-memory.dmp

Filesize
272KB

Download
memory/1892-96-0x0000000000050000-0x0000000000094000-memory.dmp

Filesize
272KB

Download
memory/1892-97-0x00000000000671E6-mapping.dmp

Download
memory/1892-94-0x0000000000050000-0x0000000000094000-memory.dmp

Filesize
272KB

Download
memory/1892-95-0x0000000000050000-0x0000000000094000-memory.dmp

Filesize
272KB

Download
memory/1892-92-0x0000000000050000-0x0000000000094000-memory.dmp

Filesize
272KB

Download
memory/1892-104-0x0000000000050000-0x0000000000094000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads