2b6f1415bd3c4cdef7e534d8d2be6c6b2b7120037c4eb196bb180c3be38b833d

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22/05/2024, 05:41

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General

Target

20240521fa6dd17406c94593b4b05bc418f91c0fcryptolocker.exe
Size

39KB
MD5

fa6dd17406c94593b4b05bc418f91c0f
SHA1

0b3ba406dcb2e69cd74945dda455dd1e99b0c222
SHA256

2b6f1415bd3c4cdef7e534d8d2be6c6b2b7120037c4eb196bb180c3be38b833d
SHA512

ddc1794483a2e74358f691f856bef2c59029ee7e045bd9b43a6a2c266806595d4318a7fe82170fb5477aff33c3d427f094d1a5fa19a86cdf78916d6b5bb36cc5
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYan8j:qDdFJy3QMOtEvwDpjjWMl7Tdn8j

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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	20240521fa6dd17406c94593b4b05bc418f91c0fcryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4128	asih.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1204-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x00090000000235d8-13.dat	upx
behavioral2/memory/4128-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1204-19-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4128-28-0x0000000000500000-0x0000000000510000-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 1204 wrote to memory of 4128	1204	20240521fa6dd17406c94593b4b05bc418f91c0fcryptolocker.exe	92
PID 1204 wrote to memory of 4128	1204	20240521fa6dd17406c94593b4b05bc418f91c0fcryptolocker.exe	92
PID 1204 wrote to memory of 4128	1204	20240521fa6dd17406c94593b4b05bc418f91c0fcryptolocker.exe	92

C:\Users\Admin\AppData\Local\Temp\20240521fa6dd17406c94593b4b05bc418f91c0fcryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\20240521fa6dd17406c94593b4b05bc418f91c0fcryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4128

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4072,i,14486271492189381216,15799931579469722648,262144 --variations-seed-version --mojo-platform-channel-handle=4552 /prefetch:8
1⤵
PID:4364

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
40KB

MD5
187743b5ab26aacd3eeedabda4709327

SHA1
504c3fe8f758ee74ec4446a456f39b21ca240fa2

SHA256
101f21a689993a3144413afd2fe439bc5d2d5b825330eb8791ed2aa24f3eace1

SHA512
2d5adc4e9a549e99b239cd3e4ce4fe4f54245965413f6bf81041170b64fe0f7a01948f0d97144aa9c2d24ad932fe8a6593e65c22c4104b84bbcc43a193499938

Download Submit
memory/1204-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1204-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1204-2-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/1204-9-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1204-19-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4128-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4128-21-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/4128-27-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4128-28-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download