22d78f61980b786020a96f29221bbf1583b576cf66436da0b2e5f5b744b5ef4a

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09-03-2024 00:40

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General

Target

2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_cryptolocker.exe
Size

35KB
MD5

9533cdf30260ea586ad8f0cd8dc53188
SHA1

5447912a9323cd4762d004e8a4fe84aff067d886
SHA256

22d78f61980b786020a96f29221bbf1583b576cf66436da0b2e5f5b744b5ef4a
SHA512

be2244a30e841f6e37af974d6c079b81c978db75c0ba2f1ab837b29f936731bda5cea3cd8083c573bdb820202664f5b990a6a06b66c00fa52bdda91ffa16c2d7
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiA0f9HMfKK:btB9g/WItCSsAGjX7e9N8sfB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00070000000122cd-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2756	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2104	2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_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
2104	2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_cryptolocker.exe
2756	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 2756	2104	2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_cryptolocker.exe	28
PID 2104 wrote to memory of 2756	2104	2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_cryptolocker.exe	28
PID 2104 wrote to memory of 2756	2104	2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_cryptolocker.exe	28
PID 2104 wrote to memory of 2756	2104	2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2104
- 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:2756

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
daf487633262c700bbfc112834be380a

SHA1
555fc252edb6bac787aa56ba0b9a27407abe2bba

SHA256
c85a4bc88a58721f9d462d42c92878381b88ee2a434514bcf70cbbf00d6fe44d

SHA512
95f3ed5ea7f2cac157ce8dd3bd739ce82d70ddd7fbfd01098bfdc999e28e4770860be478018e3c251b80c5d2fb7de79eeaf3c4a6ce14a9d4aa2979d2ead8211f

Download Submit
memory/2104-0-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2104-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2104-8-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2756-23-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download