c7f19c3065147385854e982529248a54acac3f21441a169e0def98d1bcdde721

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/04/2024, 01:49

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General

Target

2024-04-22_9cfc90535c988f75fd011dfb4fecaebd_cryptolocker.exe
Size

35KB
MD5

9cfc90535c988f75fd011dfb4fecaebd
SHA1

2a7b7ff32d1d4a32f038e85ebecf8cc4c3e84db0
SHA256

c7f19c3065147385854e982529248a54acac3f21441a169e0def98d1bcdde721
SHA512

ee9c644476eed974a0c9314bfa2cbdd5cd195bf8d2f16185b45ca588d2a6ba4e0863dfebfedec206e5de1af94f71ddc0c85ba6f91b330b0c511a4d5423c08e56
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qU:btB9g/WItCSsAGjX7r3BTU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012257-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2912	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2196	2024-04-22_9cfc90535c988f75fd011dfb4fecaebd_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
2196	2024-04-22_9cfc90535c988f75fd011dfb4fecaebd_cryptolocker.exe
2912	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 2912	2196	2024-04-22_9cfc90535c988f75fd011dfb4fecaebd_cryptolocker.exe	28
PID 2196 wrote to memory of 2912	2196	2024-04-22_9cfc90535c988f75fd011dfb4fecaebd_cryptolocker.exe	28
PID 2196 wrote to memory of 2912	2196	2024-04-22_9cfc90535c988f75fd011dfb4fecaebd_cryptolocker.exe	28
PID 2196 wrote to memory of 2912	2196	2024-04-22_9cfc90535c988f75fd011dfb4fecaebd_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-22_9cfc90535c988f75fd011dfb4fecaebd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-22_9cfc90535c988f75fd011dfb4fecaebd_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2196
- 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:2912

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
35KB

MD5
f1c5afba91bfc2b3a595ba086830505e

SHA1
2cfbc21fbde4f358c638d8858f7faf10d8bc0981

SHA256
e8e3ca4b8c211aab3524a1630deaaf09f7387baa1fc45034bdfc61a2e370dcac

SHA512
538c92fb46ab398b4e130a70a23e1e6499e458b183f6374a0841e261da1a38863cc469fa2fac5d19de826cc9a538715ecb8b9c195fce53e08d7513757766ad12

Download Submit
memory/2196-0-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2196-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2196-3-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2912-17-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download