4e942a35e8d3cdf4a8b994d786253b7c7a07935a4b223810df7d8f5b7498b967

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-10-2024 17:41

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General

Target

4e942a35e8d3cdf4a8b994d786253b7c7a07935a4b223810df7d8f5b7498b967N.exe
Size

53KB
MD5

d143563c67f317a531147d6a9ee83000
SHA1

4b9e2542d023da1cbd0523f5695086f11318bafb
SHA256

4e942a35e8d3cdf4a8b994d786253b7c7a07935a4b223810df7d8f5b7498b967
SHA512

02c9d2b6804e5c998533cd7608ac860209150a35a13726dfc249b342892333eeadfee271c8fb8598c3d3ea369f34e3a4dc32c9a741f27620fd38a282607c4c4a
SSDEEP

1536:dNGg8r8Qpdbt7sX8q7Kp3StjEMjmLM3ztDJWZsXy4JzxPM0:8t7sXnJJjmLM3zRJWZsXy4Jd

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2792	coujaax.exe

Loads dropped DLL 7 IoCs

pid	Process
2268	4e942a35e8d3cdf4a8b994d786253b7c7a07935a4b223810df7d8f5b7498b967N.exe
2268	4e942a35e8d3cdf4a8b994d786253b7c7a07935a4b223810df7d8f5b7498b967N.exe
2796	WerFault.exe
2796	WerFault.exe
2796	WerFault.exe
2796	WerFault.exe
2796	WerFault.exe

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2848	2268	WerFault.exe	30
2796	2792	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4e942a35e8d3cdf4a8b994d786253b7c7a07935a4b223810df7d8f5b7498b967N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	coujaax.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2268	4e942a35e8d3cdf4a8b994d786253b7c7a07935a4b223810df7d8f5b7498b967N.exe
2792	coujaax.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 2792	2268	4e942a35e8d3cdf4a8b994d786253b7c7a07935a4b223810df7d8f5b7498b967N.exe	31
PID 2268 wrote to memory of 2792	2268	4e942a35e8d3cdf4a8b994d786253b7c7a07935a4b223810df7d8f5b7498b967N.exe	31
PID 2268 wrote to memory of 2792	2268	4e942a35e8d3cdf4a8b994d786253b7c7a07935a4b223810df7d8f5b7498b967N.exe	31
PID 2268 wrote to memory of 2792	2268	4e942a35e8d3cdf4a8b994d786253b7c7a07935a4b223810df7d8f5b7498b967N.exe	31
PID 2268 wrote to memory of 2848	2268	4e942a35e8d3cdf4a8b994d786253b7c7a07935a4b223810df7d8f5b7498b967N.exe	32
PID 2268 wrote to memory of 2848	2268	4e942a35e8d3cdf4a8b994d786253b7c7a07935a4b223810df7d8f5b7498b967N.exe	32
PID 2268 wrote to memory of 2848	2268	4e942a35e8d3cdf4a8b994d786253b7c7a07935a4b223810df7d8f5b7498b967N.exe	32
PID 2268 wrote to memory of 2848	2268	4e942a35e8d3cdf4a8b994d786253b7c7a07935a4b223810df7d8f5b7498b967N.exe	32
PID 2792 wrote to memory of 2796	2792	coujaax.exe	33
PID 2792 wrote to memory of 2796	2792	coujaax.exe	33
PID 2792 wrote to memory of 2796	2792	coujaax.exe	33
PID 2792 wrote to memory of 2796	2792	coujaax.exe	33

C:\Users\Admin\AppData\Local\Temp\4e942a35e8d3cdf4a8b994d786253b7c7a07935a4b223810df7d8f5b7498b967N.exe
"C:\Users\Admin\AppData\Local\Temp\4e942a35e8d3cdf4a8b994d786253b7c7a07935a4b223810df7d8f5b7498b967N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Users\Admin\coujaax.exe
  "C:\Users\Admin\coujaax.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2792
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2792 -s 280
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2796
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 528
  2⤵
  - Program crash
  PID:2848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\coujaax.exe

Filesize
53KB

MD5
543603e7888d171ce444ef05062ce2b4

SHA1
9491866e7f6e2032b97f2f0b5736e555a089afff

SHA256
bed7894e1c170bdb2e7434bcac24c96d165f631c0301c86b95336c6f05ffee7b

SHA512
5da166845b936ed1756397644b61a612e01447fa06c90becf430aac082a524bceac9d0b1e4a7f2558f2807e71ad2001ebfb066b02b26e2f5f55ed93d84154a1d

Download Submit
memory/2268-0-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2268-14-0x00000000036D0000-0x00000000036E2000-memory.dmp

Filesize
72KB

Download
memory/2268-13-0x00000000036D0000-0x00000000036E2000-memory.dmp

Filesize
72KB

Download
memory/2268-26-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2792-16-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2792-25-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download