7fe0799965a5f4b3ccc8f57cc056776cadded10d7b8acdcdd77ee06d18fb634a

Analysis

max time kernel
149s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2024, 20:32

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General

Target

2024-03-14_79ede59b2b8c4d3672d0f815d5432d5b_cryptolocker.exe
Size

80KB
MD5

79ede59b2b8c4d3672d0f815d5432d5b
SHA1

0c172b052f6df1474a142d3d0ab1a2f253f05368
SHA256

7fe0799965a5f4b3ccc8f57cc056776cadded10d7b8acdcdd77ee06d18fb634a
SHA512

9d8fa22dfcbafdafab8ae31a56ec9ab52add72f3ebbf843d7cfd49acb23a6f66727adf3a78392a824cbb0ac8347deac3b8f5cd4bb226979efa3153f5d002eb97
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMAu:TCjsIOtEvwDpj5HE/OUHnSMJ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/924-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000700000001e59e-13.dat	CryptoLocker_rule2
behavioral2/memory/924-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2184-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/924-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000700000001e59e-13.dat	CryptoLocker_set1
behavioral2/memory/924-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2184-26-0x0000000000500000-0x000000000050E000-memory.dmp	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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-03-14_79ede59b2b8c4d3672d0f815d5432d5b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2184	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 924 wrote to memory of 2184	924	2024-03-14_79ede59b2b8c4d3672d0f815d5432d5b_cryptolocker.exe	88
PID 924 wrote to memory of 2184	924	2024-03-14_79ede59b2b8c4d3672d0f815d5432d5b_cryptolocker.exe	88
PID 924 wrote to memory of 2184	924	2024-03-14_79ede59b2b8c4d3672d0f815d5432d5b_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-14_79ede59b2b8c4d3672d0f815d5432d5b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_79ede59b2b8c4d3672d0f815d5432d5b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:924
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2184

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
86546dd8e9be2e1d3637129bb319dab7

SHA1
7015460276796864eb2f0cefb68c3238c0a4eb74

SHA256
7e0061e95b4db2b19aaaf1e3c3209475381250e4a25e044fcc649185d6568cc8

SHA512
2caf4ff32f7e437c778d15031aafc7ebd2a03eceea48cc0da0a6d2f0286a9ab99b27ab6bbb691525f2281f7d9c668aa11c3ef652793af74f0b7849eb1380f486

Download Submit
memory/924-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/924-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/924-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/924-3-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/924-17-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2184-20-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2184-19-0x0000000000860000-0x0000000000866000-memory.dmp

Filesize
24KB

Download
memory/2184-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download