1e89b1b457fcdaa72ab7176575641b0fdc020b5ff9e4442cbf46e8c1583135ac

Analysis

max time kernel
138s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
28/01/2024, 12:53

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General

Target

2024-01-28_e813d343211c66720ea7b63c43bb0824_cryptolocker.exe
Size

33KB
MD5

e813d343211c66720ea7b63c43bb0824
SHA1

6878fb1a67ad83487a0623b498ba4b6027613e86
SHA256

1e89b1b457fcdaa72ab7176575641b0fdc020b5ff9e4442cbf46e8c1583135ac
SHA512

0321e3f6fdbce480d7b9139ffa5394e33adc1224ff399601b9e9198f1ceeb1550153f7a1b67d84d8d14bf86f8d116df845e83ce145acdc6bf2f30f3967d19851
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7+0:bxNrC7kYo1Fxf3s0Z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023200-12.dat	CryptoLocker_rule2

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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-01-28_e813d343211c66720ea7b63c43bb0824_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2260	pissa.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 3816 wrote to memory of 2260	3816	2024-01-28_e813d343211c66720ea7b63c43bb0824_cryptolocker.exe	87
PID 3816 wrote to memory of 2260	3816	2024-01-28_e813d343211c66720ea7b63c43bb0824_cryptolocker.exe	87
PID 3816 wrote to memory of 2260	3816	2024-01-28_e813d343211c66720ea7b63c43bb0824_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-01-28_e813d343211c66720ea7b63c43bb0824_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-28_e813d343211c66720ea7b63c43bb0824_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3816
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:2260

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\pissa.exe

Filesize
33KB

MD5
8804edaebf580603c394b948e4c87670

SHA1
ce7310c98754ca0dd95eca5e4944fb4ca3dd38ca

SHA256
bb1ea4ba4dbdfe3ab40b6385f08d0c8b8ac6822fe59e33267ed72a5a207b4630

SHA512
e475919d252f0aa694216f45dd1672865f94d33a118249b324d15755ef5fe1b1e52fa18888ca378301803e23ba2848fe918485b6a164f5401c74b059d98045ce

Download Submit
memory/2260-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/2260-19-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/3816-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/3816-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/3816-2-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download