f5aaafe348b6aa641352e838f5973294d29affc910280a901e46346bd6839b5b

Analysis

max time kernel
94s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12-09-2024 05:19

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General

Target

2024-09-12_c954cb7c198024e103e318fcd7c97b73_cryptolocker.exe
Size

39KB
MD5

c954cb7c198024e103e318fcd7c97b73
SHA1

2fefe77e31d22a187b941da52fea965a5e1e1bb8
SHA256

f5aaafe348b6aa641352e838f5973294d29affc910280a901e46346bd6839b5b
SHA512

7c2cb3de3aa7d9414de5bae31563bb1db7bae53f4b785941584a9df77abfaddf09254e5044d4290617cb9a5c8e7de5c173302511ba324cc38ddfbe1d6f33a0ca
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSy3LZ:btB9g/WItCSsAGjX7e9N0hunRvt

Score

7^/10

discovery

Malware Config

Signatures

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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	2024-09-12_c954cb7c198024e103e318fcd7c97b73_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
4276	gewos.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gewos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-12_c954cb7c198024e103e318fcd7c97b73_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 4276	2204	2024-09-12_c954cb7c198024e103e318fcd7c97b73_cryptolocker.exe	84
PID 2204 wrote to memory of 4276	2204	2024-09-12_c954cb7c198024e103e318fcd7c97b73_cryptolocker.exe	84
PID 2204 wrote to memory of 4276	2204	2024-09-12_c954cb7c198024e103e318fcd7c97b73_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-12_c954cb7c198024e103e318fcd7c97b73_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-12_c954cb7c198024e103e318fcd7c97b73_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4276

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
40KB

MD5
175a91ea1a7d224c069e7489bb3fd86f

SHA1
6037c9fbb27735b4f195593cac1de83a0b8ff900

SHA256
fe9355554e449942aed1731434fab27cfceaf03c813e8f732394822194550e17

SHA512
4a15c5d5c72ba3bdbfb9909eaac9d2e2535cd8b534e722ed219bfd26bb51f8754c87cfa4a8749b6b8ec2c70ddddef016b0c0f0b3d3eebef0baf64fb4a771db07

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

Filesize
184B

MD5
a0031144ef4a8cae49dfdb2663b61cd0

SHA1
cab9e31a52b7fbe86d54b04efadb1f702898a554

SHA256
cf3cfdf2bbaceac7a96f1de99754a0d211b10c20f48ccfacf61b3ee1642ca376

SHA512
5537fd7ab49eb73e7c1d794fa398dd42ecbd98e19faac338cbb50bfb59cfb59b88d37e83d6e65df4e5bae8f99561c10f408f9ff1b1986c896e71b911d71c8824

Download Submit
memory/2204-0-0x0000000002340000-0x0000000002346000-memory.dmp

Filesize
24KB

Download
memory/2204-1-0x0000000002340000-0x0000000002346000-memory.dmp

Filesize
24KB

Download
memory/2204-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4276-25-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download