c5b84e410dc9074ff8d4c46e1cab2565fdf42b0051639079681f859a3ced6162

Analysis

max time kernel
157s
max time network
174s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
10/01/2024, 06:00

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General

Target

2024-01-09_bb0e98273d94d820f24e777732394c92_cryptolocker.exe
Size

92KB
MD5

bb0e98273d94d820f24e777732394c92
SHA1

df0dac889b2f718293e927ac85acd7475065a3e4
SHA256

c5b84e410dc9074ff8d4c46e1cab2565fdf42b0051639079681f859a3ced6162
SHA512

29daac5b4290721466509a22f9c1830e1e438bd6988993c756aa19835b23a04c65a40b93131962dc7606d0c74147390346e3daa4f7500856b78ca108600e9ab7
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp01p:AnBdOOtEvwDpj6zr

Score

7^/10

upx

Malware Config

Signatures

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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-01-09_bb0e98273d94d820f24e777732394c92_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4044	asih.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1064-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/1064-1-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/1064-11-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x000200000001e7de-16.dat	upx
behavioral2/memory/4044-29-0x0000000000500000-0x000000000050F000-memory.dmp	upx

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 1064 wrote to memory of 4044	1064	2024-01-09_bb0e98273d94d820f24e777732394c92_cryptolocker.exe	94
PID 1064 wrote to memory of 4044	1064	2024-01-09_bb0e98273d94d820f24e777732394c92_cryptolocker.exe	94
PID 1064 wrote to memory of 4044	1064	2024-01-09_bb0e98273d94d820f24e777732394c92_cryptolocker.exe	94

C:\Users\Admin\AppData\Local\Temp\2024-01-09_bb0e98273d94d820f24e777732394c92_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-09_bb0e98273d94d820f24e777732394c92_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1064
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4044

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
92KB

MD5
a5c89188079de4cf758f4adddd9a223b

SHA1
6c0ee6b799c4c1ebf997f045a4a528883586aec6

SHA256
659a85d2c89fe68a4cc6b6e2ba98b03cb7e4e31870a6705d53b06b3dd8d8f1c9

SHA512
198c0d84873bb1c1d9368eb71b28454d3ae5c960601072e494319bb5400b2291abb4ff35d5b453d7152f5ce4558aec0fac7c2a9467d8e07c5290613e69717412

Download Submit
memory/1064-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1064-1-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1064-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1064-3-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1064-4-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/1064-11-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4044-21-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/4044-22-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/4044-29-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download