269603cce2007cc6989894bf6d160e8f25ed12965800634e6c27bbc9c04fe735

Analysis

max time kernel
139s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
14/02/2024, 13:49

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General

Target

2024-02-14_2bb8c8251087c048c44db52388231ec3_cryptolocker.exe
Size

42KB
MD5

2bb8c8251087c048c44db52388231ec3
SHA1

3301f452da8c69f174dcf6a6948ee16dc619dccf
SHA256

269603cce2007cc6989894bf6d160e8f25ed12965800634e6c27bbc9c04fe735
SHA512

a5ef66035f2b735d25ec4832aab98f35b27235ae7f257d886389ef8220ae23ab3184966e28a241cf714031cc2d2ac0caafd9e98fa864d73499baf4da00cfb1ad
SSDEEP

768:btB9g/WItCSsAGjX7r3BPOMHoc/QQ/hGGtPVRfj:btB9g/xtCSKfxLIc//hGGtbL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000f000000023124-12.dat	CryptoLocker_rule2

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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-02-14_2bb8c8251087c048c44db52388231ec3_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
2920	gewos.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 2280 wrote to memory of 2920	2280	2024-02-14_2bb8c8251087c048c44db52388231ec3_cryptolocker.exe	85
PID 2280 wrote to memory of 2920	2280	2024-02-14_2bb8c8251087c048c44db52388231ec3_cryptolocker.exe	85
PID 2280 wrote to memory of 2920	2280	2024-02-14_2bb8c8251087c048c44db52388231ec3_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-14_2bb8c8251087c048c44db52388231ec3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_2bb8c8251087c048c44db52388231ec3_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:2920

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\gewos.exe

Filesize
42KB

MD5
f72d8e194588a2f4eec35dfbfe0287c3

SHA1
406d28d5a84092aafd05dba5c61b7077f6af4e8f

SHA256
0f2714b66abff711f68cc9ce38dd3c32ec823cf3b37ee99f3ca03cdcad6e72a1

SHA512
173cc90bd78b697e86179d3b2b9cd8504e19f3352754d7de43f593cc44c0423de73a11be455578b2dab16884011b67b723ec306a9d94fc3f8171f64f8bb06872

Download Submit
memory/2280-0-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/2280-1-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/2280-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2920-21-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download