cf8c5b6f770b496d4d793876e9abc795d76fd810479a9bffe154620465ad32e0

Analysis

max time kernel
136s
max time network
167s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
22-01-2024 15:28

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General

Target

2024-01-22_6095aeb04504de6c2b0c8f84474eb404_cryptolocker.exe
Size

60KB
MD5

6095aeb04504de6c2b0c8f84474eb404
SHA1

108b8c048b7153786c438dbe573de47013f97753
SHA256

cf8c5b6f770b496d4d793876e9abc795d76fd810479a9bffe154620465ad32e0
SHA512

a45a9c4aaf3f3c8f8fecf22ad802b8a210f28a83bb0725f03aad29863772c1fa50a892eb54df404dada30aa82217b882e831ca53f8f96be45fd7e06ba4ca9f88
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZgBh8i6g7GoFwDq:xj+VGMOtEvwDpjubEgywe

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/3544-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3544-10-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000a00000002302d-14.dat	CryptoLocker_rule2
behavioral2/memory/3108-54-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/3544-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3544-10-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000a00000002302d-14.dat	CryptoLocker_set1
behavioral2/memory/3108-54-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral2/memory/3544-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3544-10-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x000a00000002302d-14.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3108-54-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-01-22_6095aeb04504de6c2b0c8f84474eb404_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
3108	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 3544 wrote to memory of 3108	3544	2024-01-22_6095aeb04504de6c2b0c8f84474eb404_cryptolocker.exe	90
PID 3544 wrote to memory of 3108	3544	2024-01-22_6095aeb04504de6c2b0c8f84474eb404_cryptolocker.exe	90
PID 3544 wrote to memory of 3108	3544	2024-01-22_6095aeb04504de6c2b0c8f84474eb404_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-01-22_6095aeb04504de6c2b0c8f84474eb404_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-22_6095aeb04504de6c2b0c8f84474eb404_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3544
- 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:3108

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
60KB

MD5
b02d50f06e82c7aa23222361ac4c748a

SHA1
f1949c02eade403305ea9297fc8909643a9ff763

SHA256
e747857dae3a53cc4b3c2364feb9f1cd82490b6cc95e8cf91cace44cb04e93a0

SHA512
d8783d6d98e42d27802918e42d38712383c1b6b69ee442bb0ac15d35520da6fc36cfd95cf36183bd2e19f5b68e8953ac85e442ef0ea7bf9c3a5235782b50945c

Download Submit
memory/3108-19-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3108-20-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3108-54-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3544-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3544-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3544-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3544-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3544-10-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download