bb37af282a1d59a222f9e0f186b9c5ea30705d47554e09a8ef2e0228b5c9eaab

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-09-2024 14:25

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General

Target

2024-09-05_b52262d8f439c5de95b79124c7822393_cryptolocker.exe
Size

40KB
MD5

b52262d8f439c5de95b79124c7822393
SHA1

05b5760f4970dfc0498ae4139e872770ee967a70
SHA256

bb37af282a1d59a222f9e0f186b9c5ea30705d47554e09a8ef2e0228b5c9eaab
SHA512

656604b519372195ba830298bff62945455ff0d9aa101dc454267034c579435673f1c56d36e7b8c88c6301a8eed5d46038f9c5f40a04166d46d0387223609d79
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSy3Lgc:btB9g/WItCSsAGjX7e9N0hunRvsc

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2700	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
816	2024-09-05_b52262d8f439c5de95b79124c7822393_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	2024-09-05_b52262d8f439c5de95b79124c7822393_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gewos.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
816	2024-09-05_b52262d8f439c5de95b79124c7822393_cryptolocker.exe
2700	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 816 wrote to memory of 2700	816	2024-09-05_b52262d8f439c5de95b79124c7822393_cryptolocker.exe	31
PID 816 wrote to memory of 2700	816	2024-09-05_b52262d8f439c5de95b79124c7822393_cryptolocker.exe	31
PID 816 wrote to memory of 2700	816	2024-09-05_b52262d8f439c5de95b79124c7822393_cryptolocker.exe	31
PID 816 wrote to memory of 2700	816	2024-09-05_b52262d8f439c5de95b79124c7822393_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-09-05_b52262d8f439c5de95b79124c7822393_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_b52262d8f439c5de95b79124c7822393_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:816
- 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:2700

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

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Downloads

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

Filesize
40KB

MD5
88a4bc52e3cdff1dfb1617b1c7eaed4f

SHA1
baec840455e2fbd768447414a8ec4d235320ca02

SHA256
93b89a69d64d359f7d2f4384eb5c745e1acda83ffc36886b2e1a1e5b3b89fd24

SHA512
67a10d51705bb80af8aa9f4ff1f57f8a3e76b1a3585edc844ec1c862ecdeaaab24dd03c45b1539c1347ecd2a8c47ad1f1544651621b179e6e529b37d9ff1cc35

Download Submit
memory/816-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/816-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/816-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2700-16-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download