b032924481cd9bb1ca878c3ba08464f6149dc3223c6ae8aa93024261334faf12

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 15:53

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General

Target

2024-01-25_e808848df442092b95588e87ef9efa4a_cryptolocker.exe
Size

55KB
MD5

e808848df442092b95588e87ef9efa4a
SHA1

e6920d3dcd9923200ebb68a147bfa28cad4685a1
SHA256

b032924481cd9bb1ca878c3ba08464f6149dc3223c6ae8aa93024261334faf12
SHA512

f25bdb57ab83b3fbb04828f72b21ef8e40b1849fe93436ae50cf696e78018fe361eea21937c976bad3edb142a104a2a003fb5687d44dee4ebe0c66a13317d7a8
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/iVTab3GRuv3VylsPxAN:79mqyNhQMOtEvwDpjBPY7xv3gy5+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2640-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2
behavioral1/memory/2640-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2696-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2640-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1
behavioral1/memory/2640-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2696-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2696 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-01-25_e808848df442092b95588e87ef9efa4a_cryptolocker.exe

pid process

2640 2024-01-25_e808848df442092b95588e87ef9efa4a_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2696	asih.exe

pid	process
2640	2024-01-25_e808848df442092b95588e87ef9efa4a_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-01-25_e808848df442092b95588e87ef9efa4a_cryptolocker.exe

description	pid	process	target process
PID 2640 wrote to memory of 2696	2640	2024-01-25_e808848df442092b95588e87ef9efa4a_cryptolocker.exe	asih.exe
PID 2640 wrote to memory of 2696	2640	2024-01-25_e808848df442092b95588e87ef9efa4a_cryptolocker.exe	asih.exe
PID 2640 wrote to memory of 2696	2640	2024-01-25_e808848df442092b95588e87ef9efa4a_cryptolocker.exe	asih.exe
PID 2640 wrote to memory of 2696	2640	2024-01-25_e808848df442092b95588e87ef9efa4a_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_e808848df442092b95588e87ef9efa4a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_e808848df442092b95588e87ef9efa4a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2640

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe
Filesize
55KB

MD5
4eb41b0601130d9586beeaeaf3ecd031

SHA1
f518d9fe0dd3773c082c252f3ec882a77d00bdd8

SHA256
cebffc61fb82ebdfad52c92b53b7dd130ae926ee775bbaed1cd2cf91843235ab

SHA512
968f6fef5b51bbe7c5ad30975cf1937cae01055eedeb43d92ad3de3e1e104d73698d0bfea46a059815a3ae7305cfaf703979a772c56211c7dd9282a10005d221

Download Submit
memory/2640-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2640-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2640-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2640-3-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2640-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2696-18-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2696-19-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2696-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download