c9d7a866663a11577da74ad49edc9096b9c16c1ed69c2f31337a7d673899e9cb

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17-04-2024 04:18

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General

Target

c9d7a866663a11577da74ad49edc9096b9c16c1ed69c2f31337a7d673899e9cb.exe
Size

39KB
MD5

9158d52251c2b1a08fed2da31a527cc7
SHA1

a5568cd34e3b6481f653cb0b61b4b24ecd90bc83
SHA256

c9d7a866663a11577da74ad49edc9096b9c16c1ed69c2f31337a7d673899e9cb
SHA512

0b04bccfd8ede856758f0d417d2ee41693a676db91a233c78f91d0e09ff1a601e373bfa88d825628cd282213c050b0777e4f649a3e4a6022424cad26ecd02ecc
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkLp7P:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkL1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral2/memory/3040-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0008000000023429-13.dat	CryptoLocker_rule2
behavioral2/memory/3040-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral2/memory/3040-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x0008000000023429-13.dat	CryptoLocker_set1
behavioral2/memory/3040-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3198953144-1466794930-246379610-1000\Control Panel\International\Geo\Nation	c9d7a866663a11577da74ad49edc9096b9c16c1ed69c2f31337a7d673899e9cb.exe

Executes dropped EXE 1 IoCs

pid	Process
2072	asih.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 2072	3040	c9d7a866663a11577da74ad49edc9096b9c16c1ed69c2f31337a7d673899e9cb.exe	83
PID 3040 wrote to memory of 2072	3040	c9d7a866663a11577da74ad49edc9096b9c16c1ed69c2f31337a7d673899e9cb.exe	83
PID 3040 wrote to memory of 2072	3040	c9d7a866663a11577da74ad49edc9096b9c16c1ed69c2f31337a7d673899e9cb.exe	83

C:\Users\Admin\AppData\Local\Temp\c9d7a866663a11577da74ad49edc9096b9c16c1ed69c2f31337a7d673899e9cb.exe
"C:\Users\Admin\AppData\Local\Temp\c9d7a866663a11577da74ad49edc9096b9c16c1ed69c2f31337a7d673899e9cb.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2072

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
39KB

MD5
3081fca4982e1b7df37313379611dbad

SHA1
ba0d4c83fa2066a631b96906a43e42912d55625d

SHA256
6e983fb4b8118d9ef1a280b3db840f5bf7d714f01bc89aac40a392810fb669c6

SHA512
168c0d5c469eca7db80d61fc9fb75020e76769c91b107d70c3dddcae6430f3b7ec73fe4032b8c66f99dbff81de621e7e10c31db37202e7ee34cc4d962cf59ac0

Download Submit
memory/2072-19-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/2072-20-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/3040-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3040-1-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/3040-2-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/3040-3-0x0000000000640000-0x0000000000646000-memory.dmp

Filesize
24KB

Download
memory/3040-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download