ba4546203e0cc51f3a329c1e066fee0c544ef98f8c84fa5e78520100d319289b

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-09-2024 13:24

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General

Target

2024-09-04_42bf4850efec98d7ae1b4e379e40b04a_cryptolocker.exe
Size

40KB
MD5

42bf4850efec98d7ae1b4e379e40b04a
SHA1

3ea5965ef487c4a04bf84997646f882aa08fba12
SHA256

ba4546203e0cc51f3a329c1e066fee0c544ef98f8c84fa5e78520100d319289b
SHA512

48fe36d6e476ebbb9fa13222d79a3fdd441906fc37a7faea6b985320c4f8d284fafe01766a0e00dbc284ded94d4ac820013399434aa240a485fdf8af6a276906
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSy3Lp:btB9g/WItCSsAGjX7e9N0hunRvd

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2672	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2696	2024-09-04_42bf4850efec98d7ae1b4e379e40b04a_cryptolocker.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	2024-09-04_42bf4850efec98d7ae1b4e379e40b04a_cryptolocker.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2696	2024-09-04_42bf4850efec98d7ae1b4e379e40b04a_cryptolocker.exe
2672	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 2672	2696	2024-09-04_42bf4850efec98d7ae1b4e379e40b04a_cryptolocker.exe	30
PID 2696 wrote to memory of 2672	2696	2024-09-04_42bf4850efec98d7ae1b4e379e40b04a_cryptolocker.exe	30
PID 2696 wrote to memory of 2672	2696	2024-09-04_42bf4850efec98d7ae1b4e379e40b04a_cryptolocker.exe	30
PID 2696 wrote to memory of 2672	2696	2024-09-04_42bf4850efec98d7ae1b4e379e40b04a_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-04_42bf4850efec98d7ae1b4e379e40b04a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-04_42bf4850efec98d7ae1b4e379e40b04a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  PID:2672

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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

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

Filesize
40KB

MD5
579b6f252b96cb9f75beb199b34b0589

SHA1
beb8465e46f5785ac109ad8e680935b14220b817

SHA256
581258bd530bbe123b2b89532b11ff476f2313160805a0946f867397f9d73276

SHA512
05e209771969b303a10a6c523e79aeab54d051e78d5d3f81a83b81cd09cf8fa3f95d13d5940732bb3917d97441c7309f69e26838e7a3a7ab640deef9c0a37a3e

Download Submit
memory/2672-23-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2696-0-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2696-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2696-8-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download