c80ba4a8406d750232bd85229560fbef49e268296fec07e3372874bced583c44

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
13/06/2024, 03:41

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General

Target

2024-06-13_8b52fc63a91b2706ef173bec94a300dc_cryptolocker.exe
Size

64KB
MD5

8b52fc63a91b2706ef173bec94a300dc
SHA1

91dfe667ead9b5ba411b21d3cf41f01f918aeb49
SHA256

c80ba4a8406d750232bd85229560fbef49e268296fec07e3372874bced583c44
SHA512

fca5748df19d9a12ab67bf9d0aae25f118972051c4d97a5d4707cb62e6bae75e6e34a3831eb1df45e118ebda8944cf10057798d74b3348c69b4ad258a8e23007
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHOM:btng54SMLr+/AO/kIhfoKMHdK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d0000000153cf-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3064	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2172	2024-06-13_8b52fc63a91b2706ef173bec94a300dc_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2172	2024-06-13_8b52fc63a91b2706ef173bec94a300dc_cryptolocker.exe
3064	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 3064	2172	2024-06-13_8b52fc63a91b2706ef173bec94a300dc_cryptolocker.exe	28
PID 2172 wrote to memory of 3064	2172	2024-06-13_8b52fc63a91b2706ef173bec94a300dc_cryptolocker.exe	28
PID 2172 wrote to memory of 3064	2172	2024-06-13_8b52fc63a91b2706ef173bec94a300dc_cryptolocker.exe	28
PID 2172 wrote to memory of 3064	2172	2024-06-13_8b52fc63a91b2706ef173bec94a300dc_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-13_8b52fc63a91b2706ef173bec94a300dc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_8b52fc63a91b2706ef173bec94a300dc_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:3064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
64KB

MD5
277161b1bc81a136d27dd038387fad9c

SHA1
25378456a9d44e1602365f472808eb5761a3054e

SHA256
fd873c9203add8f8143a9ee66e471f452281c1c02af9890871127a9448293414

SHA512
be191a236f22fbb03a7ca1a305e225b70372390599bc4ba84721dd70c86c11bb9312b7548eafc8a9529f1268c6ac59e0278687adc04bfa1809879fe1df9808dc

Download Submit
memory/2172-0-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2172-8-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2172-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3064-23-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download