1ccd0e039bb5258189c63610173944ef3d1e66f13a84fd54b770888a5298cb4d

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04/02/2024, 05:43

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General

Target

2024-02-04_972678c41b4592cbb9952202acbf9dd7_cryptolocker.exe
Size

37KB
MD5

972678c41b4592cbb9952202acbf9dd7
SHA1

105f29f2a42e056868f80c6587edeb8f9b5c92f4
SHA256

1ccd0e039bb5258189c63610173944ef3d1e66f13a84fd54b770888a5298cb4d
SHA512

309564d3752471283082c679a13c4469b2c72028584e1a9a00d73ca7d409271cd94f7533778d1ba7eb6135b4c3163e46521bce7b845f0742d894aedd99587c79
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JEgx3OB:bxNrC7kYo1Fxf3s06gYB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002321c-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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	2024-02-04_972678c41b4592cbb9952202acbf9dd7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2560	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 1844 wrote to memory of 2560	1844	2024-02-04_972678c41b4592cbb9952202acbf9dd7_cryptolocker.exe	84
PID 1844 wrote to memory of 2560	1844	2024-02-04_972678c41b4592cbb9952202acbf9dd7_cryptolocker.exe	84
PID 1844 wrote to memory of 2560	1844	2024-02-04_972678c41b4592cbb9952202acbf9dd7_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-04_972678c41b4592cbb9952202acbf9dd7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-04_972678c41b4592cbb9952202acbf9dd7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1844
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:2560

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
37KB

MD5
aea23db9dea6f7f7771610d7ff66c42b

SHA1
3ca8309cf02a3d39f33de31d0100b89019dcb2d4

SHA256
39089491be3838886566fe4bb6cafca5e92152a8435fe0f6e98b96acc0e716a8

SHA512
bbd3347d6dd8db0c3ddf1bcdae719e245e0084d2aa5080e14886df23f3a24da2bad3ae3182160422c728ae3b4cc25c3681256f45ca16e068e79445b1a0d92d6d

Download Submit
memory/1844-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/1844-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/1844-2-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/2560-17-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/2560-18-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

Filesize
24KB

Download