8e36d72bcf878431101146b12e2c23e082795ae440de87735ab5e9af3837d762

Analysis

max time kernel
148s
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
01/02/2024, 22:25

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General

Target

2024-02-01_7799730795c7553e8531527760748378_cryptolocker.exe
Size

82KB
MD5

7799730795c7553e8531527760748378
SHA1

ac901622a983d189559d6da42702dde22c2b94f2
SHA256

8e36d72bcf878431101146b12e2c23e082795ae440de87735ab5e9af3837d762
SHA512

dc2b0d4ff804f21c36f527bf7c52e19856608d2638e40a29fc087d737cc8dbf1e938cbdea2f9dec90e8788c6120b54f03a69444342054da233fb2b1753d67b98
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yFPFHE:V6QFElP6n+gMQMOtEvwDpjyaLccVNlI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 2 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231f7-12.dat	CryptoLocker_rule2
behavioral2/files/0x00070000000231f7-15.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231f7-12.dat	CryptoLocker_set1
behavioral2/files/0x00070000000231f7-15.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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	2024-02-01_7799730795c7553e8531527760748378_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2008	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 3112 wrote to memory of 2008	3112	2024-02-01_7799730795c7553e8531527760748378_cryptolocker.exe	22
PID 3112 wrote to memory of 2008	3112	2024-02-01_7799730795c7553e8531527760748378_cryptolocker.exe	22
PID 3112 wrote to memory of 2008	3112	2024-02-01_7799730795c7553e8531527760748378_cryptolocker.exe	22

C:\Users\Admin\AppData\Local\Temp\2024-02-01_7799730795c7553e8531527760748378_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_7799730795c7553e8531527760748378_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3112
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2008

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
55KB

MD5
c9a5033cade65e915d42f90143ab100e

SHA1
5e2854b8b666d7fff6f34c716cc97b896362a2b4

SHA256
cf69d6bc1921ef643e67cfd7faf37bb6c9859df0d9b27bb6354282bc9caf1a68

SHA512
aedcdc4c6b22d1ba2cdb365b243e2c0efcdf9af56483dd645f4042a0f7cfb8aa683bd1e65c5c154da05f16b4a889fb9215b794467d6575841e42e5278c44d47e

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
83KB

MD5
7f2b8dcf92f6a8eed2693b81d22881bf

SHA1
81fd7e156a94b0abf613bf3844cd724ef1970ade

SHA256
a04e39bd7e4be85628ed22560f029d12aa613928c00713bace9464bbec05fe49

SHA512
d40e90481bf084f7cf496532217fbaf6ae7a28ecbe95b992a8d24d77cda9bc467731d4d7efe53e72cd9f89453d65425650e56ea6f899e76309dfd2df32e3976f

Download Submit
memory/2008-17-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/2008-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3112-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3112-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3112-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download