1833e8c935adbc09e10b22057ff7a9762d89700d31fc53de97271f1666ad79a4

Analysis

max time kernel
147s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23-02-2024 17:47

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General

Target

2024-02-23_f88ef212a3b2301d4b2b9f3284856155_cryptolocker.exe
Size

54KB
MD5

f88ef212a3b2301d4b2b9f3284856155
SHA1

79c72515204d346a7ae48ad6ae67b178f8c03b4a
SHA256

1833e8c935adbc09e10b22057ff7a9762d89700d31fc53de97271f1666ad79a4
SHA512

7d1934cda1b213152a8e3b8d5773876a3774796938b1affeac6886b654c2de2feb6866cb3ddfa7fe1cb5dd1a629af9141b7e5086d2fc3a6b132df7480d384e64
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4hdCW1nw71TkhsiPn1YFv6dltp/:vj+jsMQMOtEvwDpj5HH1nw73KOFir

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 2 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023203-12.dat	CryptoLocker_rule2
behavioral2/files/0x0006000000023203-15.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023203-12.dat	CryptoLocker_set1
behavioral2/files/0x0006000000023203-15.dat	CryptoLocker_set1

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-1-5-21-2828415587-3732861812-1919322417-1000\Control Panel\International\Geo\Nation	2024-02-23_f88ef212a3b2301d4b2b9f3284856155_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
700	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 740 wrote to memory of 700	740	2024-02-23_f88ef212a3b2301d4b2b9f3284856155_cryptolocker.exe	88
PID 740 wrote to memory of 700	740	2024-02-23_f88ef212a3b2301d4b2b9f3284856155_cryptolocker.exe	88
PID 740 wrote to memory of 700	740	2024-02-23_f88ef212a3b2301d4b2b9f3284856155_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-23_f88ef212a3b2301d4b2b9f3284856155_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_f88ef212a3b2301d4b2b9f3284856155_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:740
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:700

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\misid.exe

Filesize
54KB

MD5
825c3f41b176c28703616458580225be

SHA1
5982110f4be382490be6c298ed4585022283193a

SHA256
fcdb6a22160e0705da111cfa0e4b8d058025ce995c7a734dd3c4e5da0dd0bb17

SHA512
cb2c15236cc15df72db903490c5a083a7ce025fa57f58e7e695a1c40cc9d8d43ce31bc3753a92eed3235e22c3cae3debe45475aac352d38bc5ab4c2eb192965c

Download Submit
memory/700-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/700-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/740-0-0x0000000002280000-0x0000000002286000-memory.dmp

Filesize
24KB

Download
memory/740-1-0x0000000002280000-0x0000000002286000-memory.dmp

Filesize
24KB

Download
memory/740-2-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download