464e7236ec21b33ac1593d9e587c7f8f867b240966c60c9b52a7fa0a55bfa1f8

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
23/01/2024, 20:58

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General

Target

2024-01-23_c9ec9d23684b2bacb1787be9d5dde2c2_cryptolocker.exe
Size

50KB
MD5

c9ec9d23684b2bacb1787be9d5dde2c2
SHA1

74896f15b499ea00d39215f3884f2ea46950554d
SHA256

464e7236ec21b33ac1593d9e587c7f8f867b240966c60c9b52a7fa0a55bfa1f8
SHA512

81e1c880e27aca8fdf2b33ef9fc71dfdb745af2688efe8b4455413ef8e1cce647011adb99b89ee3db4dc77c5ba9a51e81c397dc84e165df84cb514c82ae4cfaf
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojaklo1:V6a+pOtEvwDpjF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023222-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023222-12.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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-01-23_c9ec9d23684b2bacb1787be9d5dde2c2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1756	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 932 wrote to memory of 1756	932	2024-01-23_c9ec9d23684b2bacb1787be9d5dde2c2_cryptolocker.exe	20
PID 932 wrote to memory of 1756	932	2024-01-23_c9ec9d23684b2bacb1787be9d5dde2c2_cryptolocker.exe	20
PID 932 wrote to memory of 1756	932	2024-01-23_c9ec9d23684b2bacb1787be9d5dde2c2_cryptolocker.exe	20

C:\Users\Admin\AppData\Local\Temp\2024-01-23_c9ec9d23684b2bacb1787be9d5dde2c2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-23_c9ec9d23684b2bacb1787be9d5dde2c2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:932
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1756

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
50KB

MD5
27a2f38dd85183fbc461d1c94754964a

SHA1
4e31cf4369058e1da6320bc583a9583e565adc37

SHA256
fbb5c73c759451fca3ea4d46aac5b8f9366042335bf9d90e827ef622dd9ed040

SHA512
8bd1ac8dff4ecb1ce8c6b865c698dc8e65ff6891978d454096a8f3bb555ab16b21be3d24768f992ff3f3315c52fb0f8ad219026c5a96d469c4ae0217488f3056

Download Submit
memory/932-0-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/932-2-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/932-1-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/1756-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1756-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download