8b926cdfffb39c1b910424e916876cdb10ad93426bbbf11b41b7658e7929b6f0

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12/02/2024, 20:11

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General

Target

2024-02-12_ab35dc461a9ef384792107a01fa5b427_cryptolocker.exe
Size

385KB
MD5

ab35dc461a9ef384792107a01fa5b427
SHA1

3d43af3def0f0eded55be73c7cd6380db88e7c02
SHA256

8b926cdfffb39c1b910424e916876cdb10ad93426bbbf11b41b7658e7929b6f0
SHA512

00b3c5c493efbdf24d458b5fc887e96313c2c1e7e4545be6631b1b8b6bf9a3309cbf22b0623b514d8b5d5814b6a13fcd9898e4acabb57f240746b3febfa4b3c2
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzX9:nnOflT/ZFIjBz3xjTxynGUOUhX9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000d000000023150-12.dat	CryptoLocker_rule2

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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	2024-02-12_ab35dc461a9ef384792107a01fa5b427_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4612	hasfj.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 3288 wrote to memory of 4612	3288	2024-02-12_ab35dc461a9ef384792107a01fa5b427_cryptolocker.exe	85
PID 3288 wrote to memory of 4612	3288	2024-02-12_ab35dc461a9ef384792107a01fa5b427_cryptolocker.exe	85
PID 3288 wrote to memory of 4612	3288	2024-02-12_ab35dc461a9ef384792107a01fa5b427_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-12_ab35dc461a9ef384792107a01fa5b427_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_ab35dc461a9ef384792107a01fa5b427_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3288
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4612

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\hasfj.exe

Filesize
385KB

MD5
ea96e4466ddbf410345ee40be1ee317e

SHA1
2cc9830d0210c0090bd8a9b2ef8fc3165355fe90

SHA256
fba09bce7ea410a7b74c006332778ce2a0e1aeb631bb60080f754d7c8a25f9f9

SHA512
b2f048b70b2cfc43e645a14fbdba1a6223b2c3a75a40b7a4b9883beb997e66c7461ceed88e9cf3ad49be3693e360ec5dcb373c2e4ed2593c173f71034896f53c

Download Submit
memory/3288-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3288-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3288-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4612-19-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download
memory/4612-17-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download