cobaltstrike | 663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
17/06/2024, 08:01

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General

Target

663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec.exe
Size

2.5MB
MD5

ec32ce29d31a797a82cfbeff8040e86e
SHA1

61040c0e08b8870bf0d558e1e051d2fc85284321
SHA256

663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec
SHA512

a8fc43091dd5cfd841c409262f4d59522396792e543aaf91306405b707425355227e8b2fc81d86df49fba56c6fab306b56cb32d1fea0140baa884963c133da52
SSDEEP

49152:TI2KnwKzdsaXvfIGd8L0z8f55rzOWYnxXNPzdd8V37fz941DMyMC4oxK8:TGn/dsYHTasWLzqnxdZE37LJybHxK8

Score

10^/10

cobaltstrike backdoor trojan

Malware Config

Extracted

Family

cobaltstrike

http://192.168.108.129:60001/IyHS

Attributes

user_agent
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; BOIE8;ENUS)

Signatures

Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
trojan backdoor cobaltstrike

Executes dropped EXE 2 IoCs

pid	Process
2820	flashcenter.exe
2736	1.exe

Loads dropped DLL 6 IoCs

pid	Process
2236	663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec.exe
2236	663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec.exe
2236	663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec.exe
2236	663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec.exe
2236	663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec.exe
2236	663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Main	flashcenter.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2820	flashcenter.exe
2820	flashcenter.exe
2820	flashcenter.exe
2820	flashcenter.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2820	2236	663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec.exe	28
PID 2236 wrote to memory of 2820	2236	663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec.exe	28
PID 2236 wrote to memory of 2820	2236	663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec.exe	28
PID 2236 wrote to memory of 2820	2236	663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec.exe	28
PID 2236 wrote to memory of 2736	2236	663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec.exe	29
PID 2236 wrote to memory of 2736	2236	663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec.exe	29
PID 2236 wrote to memory of 2736	2236	663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec.exe	29
PID 2236 wrote to memory of 2736	2236	663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec.exe	29

C:\Users\Admin\AppData\Local\Temp\663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec.exe
"C:\Users\Admin\AppData\Local\Temp\663aaedc2a446353b9d44e9acb47b1f77b864f1d303fd81a884ea13ba77bd2ec.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Windows\Temp\flashcenter.exe
  "C:\Windows\Temp\flashcenter.exe"
  2⤵
  - Executes dropped EXE
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2820
- C:\Windows\Temp\1.exe
  "C:\Windows\Temp\1.exe"
  2⤵
  - Executes dropped EXE
  PID:2736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Temp\1.exe

Filesize
19KB

MD5
b64c616a78bbef1050766ce8f0168c6d

SHA1
7247219b42bcf142b66a38edacb2c8e9c7b3222d

SHA256
294a9d2c2527572a30741c9af3c073442a3fc29ee58c548faee86a16fd36467c

SHA512
0713208cf03aa266c52e85725ca80a9da90ed5aa4be4b524fb8e3d32b71f61ffb2ab7a42f9064a8baeb9564c8a0be8855fc765aa97d0e2208eda607f71f8cf22

Download Submit
\Windows\Temp\flashcenter.exe

Filesize
2.2MB

MD5
4a0b3b022f0ec45801848dba53397e0a

SHA1
8cb047a9e0966e760e6768e46caf1981fe8d9b9f

SHA256
30e5cdddfd883d8188b55066941df471b5d2247a1077419f10190da5a91d0c5e

SHA512
9d67ceff74c981cdad46e81fbd526530b7f69003e5bf3369edc52a6ddb2272397c8b27d4d3e650efcfcf49a6b4525fd4ca9015ba26970d72ce77460dd2ba33f2

Download Submit
memory/2236-8-0x0000000003C50000-0x00000000042B3000-memory.dmp

Filesize
6.4MB

Download
memory/2236-26-0x0000000003C50000-0x00000000042B3000-memory.dmp

Filesize
6.4MB

Download
memory/2736-269-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2736-271-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2820-27-0x0000000001390000-0x00000000019F3000-memory.dmp

Filesize
6.4MB

Download
memory/2820-270-0x0000000001390000-0x00000000019F3000-memory.dmp

Filesize
6.4MB

Download
memory/2820-274-0x0000000001390000-0x00000000019F3000-memory.dmp

Filesize
6.4MB

Download