a8ae7f170094646a90ce091d0a148db65345d1560559b3782c5481fc516b5de1

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
29/01/2024, 02:25

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General

Target

2024-01-29_30fb055cab8d5f2111d312b5bd8d401e_cryptolocker.exe
Size

34KB
MD5

30fb055cab8d5f2111d312b5bd8d401e
SHA1

fb0526e6042954d1ccc5d3073b7600810d5a67c7
SHA256

a8ae7f170094646a90ce091d0a148db65345d1560559b3782c5481fc516b5de1
SHA512

8fb8604e0d61aeaa66f03da03eea41eb8e9a170c0ea2ff919a5f1af905148a918e829de9498ef3cc91a345372e32bdd09c42a7ed4a5f2b51123c969dbc57d00b
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunXZe:btB9g/WItCSsAGjX7e9N0hunpe

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012238-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2272	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2000	2024-01-29_30fb055cab8d5f2111d312b5bd8d401e_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
2000	2024-01-29_30fb055cab8d5f2111d312b5bd8d401e_cryptolocker.exe
2272	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 2272	2000	2024-01-29_30fb055cab8d5f2111d312b5bd8d401e_cryptolocker.exe	28
PID 2000 wrote to memory of 2272	2000	2024-01-29_30fb055cab8d5f2111d312b5bd8d401e_cryptolocker.exe	28
PID 2000 wrote to memory of 2272	2000	2024-01-29_30fb055cab8d5f2111d312b5bd8d401e_cryptolocker.exe	28
PID 2000 wrote to memory of 2272	2000	2024-01-29_30fb055cab8d5f2111d312b5bd8d401e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-29_30fb055cab8d5f2111d312b5bd8d401e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_30fb055cab8d5f2111d312b5bd8d401e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2000
- 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:2272

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
d3d40463fd935ef8a4fb73945e7796ab

SHA1
d7511848384c1a2febb693c1088d85d5bb28692f

SHA256
cdfd571176f9ec19149a76794d00ad19a665ed2e763b62e888e438014b99a266

SHA512
4d1af16d893b0939f353d3538569d927b8540622dcc84618a5e00e1b0c49d416b18ed9508c7a140ed29b3fcd21217620df0259ab108c079e147afe6721919071

Download Submit
memory/2000-0-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2000-2-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2000-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2272-16-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download