d93f2958821b567cb0b61589a18c8b9e320d334aeb8ae1a687f460d6d606aeb8

Analysis

max time kernel
145s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10-04-2024 19:33

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General

Target

2024-04-10_9152497f34e3674b1a413dbdf17f3b1c_cryptolocker.exe
Size

55KB
MD5

9152497f34e3674b1a413dbdf17f3b1c
SHA1

8b4bb94755646fe0922289acc6008fb24a747ee5
SHA256

d93f2958821b567cb0b61589a18c8b9e320d334aeb8ae1a687f460d6d606aeb8
SHA512

e3ef9cca7f070e3bd49148175d4aafa4a1a2a91592fcddb356fa342c65a83d7917b7ac8ce1df86f410d815863e38b8db555d8c643ef9593910f0bae52fe30cd0
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaTiSfQaV2LJL:X6QFElP6n+gJBMOtEvwDpjBtE1yILJL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023218-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023218-12.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-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	2024-04-10_9152497f34e3674b1a413dbdf17f3b1c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3436	asih.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 3004 wrote to memory of 3436	3004	2024-04-10_9152497f34e3674b1a413dbdf17f3b1c_cryptolocker.exe	84
PID 3004 wrote to memory of 3436	3004	2024-04-10_9152497f34e3674b1a413dbdf17f3b1c_cryptolocker.exe	84
PID 3004 wrote to memory of 3436	3004	2024-04-10_9152497f34e3674b1a413dbdf17f3b1c_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-04-10_9152497f34e3674b1a413dbdf17f3b1c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-10_9152497f34e3674b1a413dbdf17f3b1c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3004
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3436

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
55KB

MD5
54bc9bed3494276ba220b9e5e754b37d

SHA1
451e2adf6d661dcf406c4fd2ec83b236254165c8

SHA256
d077fb1ad6f38e1acb3655d88101661f179eb3079812c305a9d9829e06165e64

SHA512
1f4315c36ed8bfa2368483c1f9f2ed447fb1794349664befddcb88105b06ecfe9cfeb19379a5b7c06b49c3e1ebfdd6353ac9ce1978172570e2a3250c99af931c

Download Submit
memory/3004-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3004-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3004-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3436-17-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/3436-19-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download