e3dadc05d0fdc3a1611fbd32cd40d9b24f0b219cf68b9097c8f3dd1bfa35ce0c

Analysis

max time kernel
89s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29/01/2024, 02:28

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General

Target

2024-01-29_7dd44975f0673a0ecfb4d4368acd5d29_cryptolocker.exe
Size

80KB
MD5

7dd44975f0673a0ecfb4d4368acd5d29
SHA1

f54b678a897fe10addb8a6d87355b20c5ec07c73
SHA256

e3dadc05d0fdc3a1611fbd32cd40d9b24f0b219cf68b9097c8f3dd1bfa35ce0c
SHA512

9175c531ba0f458bf1b56e6db7201b95da7eb69398981f191d367f5bcf3439cac925478f6ba783a2d9f1e7135b06cfc401b0f44d6e00bb0aa0c9e2d7be5e5632
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMo:TCjsIOtEvwDpj5HE/OUHnSMy

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/1868-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000d000000023151-13.dat	CryptoLocker_rule2
behavioral2/memory/792-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1868-18-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/792-55-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/1868-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000d000000023151-13.dat	CryptoLocker_set1
behavioral2/memory/792-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/memory/1868-18-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/memory/792-55-0x0000000000500000-0x000000000050E000-memory.dmp	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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	2024-01-29_7dd44975f0673a0ecfb4d4368acd5d29_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
792	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 1868 wrote to memory of 792	1868	2024-01-29_7dd44975f0673a0ecfb4d4368acd5d29_cryptolocker.exe	84
PID 1868 wrote to memory of 792	1868	2024-01-29_7dd44975f0673a0ecfb4d4368acd5d29_cryptolocker.exe	84
PID 1868 wrote to memory of 792	1868	2024-01-29_7dd44975f0673a0ecfb4d4368acd5d29_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-01-29_7dd44975f0673a0ecfb4d4368acd5d29_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_7dd44975f0673a0ecfb4d4368acd5d29_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1868
- 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:792

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
80KB

MD5
0664b594686bd323725b7739a5047eee

SHA1
5e75086a8dc7d3870f978316c50674462befe69e

SHA256
a2cb00d3207d5ac237276874fa8867a5c9f44034a4175176a585747b0a675a6f

SHA512
fd3f0338e4d08661881124810f9b5128e16da8228682b46e5e274c0110e5c69537dd2099fec73a816ade33dabeebe5fd6d8f703bdd95007558b7d4499575d0dc

Download Submit
memory/792-17-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/792-20-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/792-26-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/792-55-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1868-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1868-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1868-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1868-3-0x0000000000850000-0x0000000000856000-memory.dmp

Filesize
24KB

Download
memory/1868-18-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download