6ee60438c45eb04575d2973bb4c84d5db0fd6247e1a89aa4b01c3dfe6bab54b6

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 18:39

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General

Target

2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe
Size

117KB
MD5

e5e0e65669da3a7fcd9f9080f5772d84
SHA1

c40f4071eb36b6f3c07baf7b6906ca55c15db7df
SHA256

6ee60438c45eb04575d2973bb4c84d5db0fd6247e1a89aa4b01c3dfe6bab54b6
SHA512

cdf6fea66903f7aae1b516f093cbe3ab8b526f0af242396e97abd4d4a36bc9c89872abcc98f5d0df34901a1e3d1eae8ff08823164ea8a1d6b157ff9e344393c6
SSDEEP

1536:z6QFElP6n+gKmddpMOtEvwDpj3GYQbN/PKwNgp69u:z6a+CdOOtEvwDpjcz0

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

3244 asih.exe

pid	process
3244	asih.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/4460-132-0x0000000000500000-0x0000000000510000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\asih.exe	upx
C:\Users\Admin\AppData\Local\Temp\asih.exe	upx
behavioral2/memory/3244-145-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4460-146-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/3244-154-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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

Processes:

2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe

description	pid	process	target process
PID 4460 wrote to memory of 3244	4460	2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe	asih.exe
PID 4460 wrote to memory of 3244	4460	2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe	asih.exe
PID 4460 wrote to memory of 3244	4460	2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4460

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:3244

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe
Filesize
117KB

MD5
a8138578ae5d3a93643c646a23bfacfe

SHA1
eecb78493b27c497691d2e11803e1fa4cafeb838

SHA256
f1588034410a38f771b00784f74e0d6703aad5f619f6e49d7b2189544e652db5

SHA512
015cffb6ceac634c2b7c06b1d686f4044ef7381eb692b402c061669dc5383b59298b2b599aa3f298b853cca1b911cba68f595d8f4b1ef642b6fc120665a83f32

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe
Filesize
117KB

MD5
a8138578ae5d3a93643c646a23bfacfe

SHA1
eecb78493b27c497691d2e11803e1fa4cafeb838

SHA256
f1588034410a38f771b00784f74e0d6703aad5f619f6e49d7b2189544e652db5

SHA512
015cffb6ceac634c2b7c06b1d686f4044ef7381eb692b402c061669dc5383b59298b2b599aa3f298b853cca1b911cba68f595d8f4b1ef642b6fc120665a83f32

Download Submit
memory/3244-140-0x0000000000000000-mapping.dmp

Download
memory/3244-147-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/3244-145-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3244-153-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/3244-154-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4460-133-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/4460-132-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4460-134-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/4460-143-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/4460-146-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download