d12b5b9e4acee6d62960c458f9f474b1221747b3f7495fe5cab8142ff985c82b

Analysis

max time kernel
143s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/04/2024, 16:44

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-04-09_dd916a11b25b2c76843f9559fdd336fa_cryptolocker.exe
Size

90KB
MD5

dd916a11b25b2c76843f9559fdd336fa
SHA1

286bb53e4a3a62a05b7d7f335d7eea792bfac0dc
SHA256

d12b5b9e4acee6d62960c458f9f474b1221747b3f7495fe5cab8142ff985c82b
SHA512

75cc01e6b06660225396cabfb5a4f2875f98e279e10150c224be0eae3127ac2a51eab078c968493aa0ea2698356dcdb3ed330d2b8c48af51be65a14232fcc717
SSDEEP

1536:vj+jsMQMOtEvwDpj5H8u8rBN6nqEZNi1OkQNpAPH:vCjsIOtEvwDpj5H8zPs+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00020000000227ea-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00020000000227ea-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 2 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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-04-09_dd916a11b25b2c76843f9559fdd336fa_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
1008	misid.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 1592 wrote to memory of 1008	1592	2024-04-09_dd916a11b25b2c76843f9559fdd336fa_cryptolocker.exe	94
PID 1592 wrote to memory of 1008	1592	2024-04-09_dd916a11b25b2c76843f9559fdd336fa_cryptolocker.exe	94
PID 1592 wrote to memory of 1008	1592	2024-04-09_dd916a11b25b2c76843f9559fdd336fa_cryptolocker.exe	94

C:\Users\Admin\AppData\Local\Temp\2024-04-09_dd916a11b25b2c76843f9559fdd336fa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-09_dd916a11b25b2c76843f9559fdd336fa_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1592
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1008

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 --mojo-platform-channel-handle=4140 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:8
1⤵
PID:4212

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

Loading Replay Monitor...

Downloads

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

Filesize
90KB

MD5
2b5d50b60b0fbf23e3efce93e9e4700e

SHA1
13b89834abeaabf65f0c0c110a9f4aa143f2f78d

SHA256
66bd0d5fc689407b0ab41abdca51120df5aa4237f1a37efd8dc128e0d34a5403

SHA512
306e14009ae51cee93ed35e2d1c1fa217f58d0337ac782216b3b1b1730dadf4079538ad16b04b575d42e58869cfdcb2c78f6d5dd27184d0dd11ab690baa5b35e

Download Submit
C:\Users\Admin\AppData\Local\Temp\misids.exe

Filesize
1KB

MD5
269b35029dec8f70b073f829be818196

SHA1
d3eb42d36000c3459136374ee6eb1e986b44e403

SHA256
df8c24a8dc38d8d2a745f2261dc0d56927f769aefa112208c9823089dedd590a

SHA512
e218cd2a102c0c1fe49183512c76a1b950904555842673e3e069b75ee773879636a4dbf08fa5606c19ca80fd61ade76deddbdf05b16032c2bd873c69a9c3347a

Download Submit
memory/1008-17-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download
memory/1008-20-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/1592-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/1592-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/1592-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download