3fc57906d505bfd76350c3630ab23bf6fb9dc1e693ae3c53440aaca7b55fe3d4

Analysis

max time kernel
122s
max time network
139s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16/03/2024, 10:00

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-16_e8961213188e697df2f2601505a5ef8f_cryptolocker.exe
Size

47KB
MD5

e8961213188e697df2f2601505a5ef8f
SHA1

cd8e02566f530ffcf9ef457349f308d04248e7c8
SHA256

3fc57906d505bfd76350c3630ab23bf6fb9dc1e693ae3c53440aaca7b55fe3d4
SHA512

b80ca0cdae0f63a3c620d5952e03c961f54affbd64d4a043d9f2b0539fea2087507c54403de2fb83dee978909db9f1563c9e710f2c7a39484dbc5a08beffdab6
SSDEEP

768:btB9g/WItCSsAGjX7r3BPOMHoc/QQJP5wjvaHYwiN:btB9g/xtCSKfxLIc/E1d

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012248-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3068	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2348	2024-03-16_e8961213188e697df2f2601505a5ef8f_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
2348	2024-03-16_e8961213188e697df2f2601505a5ef8f_cryptolocker.exe
3068	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 3068	2348	2024-03-16_e8961213188e697df2f2601505a5ef8f_cryptolocker.exe	28
PID 2348 wrote to memory of 3068	2348	2024-03-16_e8961213188e697df2f2601505a5ef8f_cryptolocker.exe	28
PID 2348 wrote to memory of 3068	2348	2024-03-16_e8961213188e697df2f2601505a5ef8f_cryptolocker.exe	28
PID 2348 wrote to memory of 3068	2348	2024-03-16_e8961213188e697df2f2601505a5ef8f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-16_e8961213188e697df2f2601505a5ef8f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-16_e8961213188e697df2f2601505a5ef8f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2348
- 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:3068

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

Loading Replay Monitor...

Downloads

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

Filesize
47KB

MD5
3ffea408dd0b53aee85691a440894d24

SHA1
e360fe64ef845f6a95e13530f674e302cc9f75fb

SHA256
bddf94f0dc8e50d4e8b2cf0020e0bf475b0f9a3ea6a315d89b407851765b8873

SHA512
b36c484b892066413b308ae6cf232efbe95c4850304f5a7d86cfa9a36f97e2b98202bb924e82e89ef77b84d90187490cb8c34aeea5bda55fa1b19b20575b34b3

Download Submit
memory/2348-0-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/2348-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2348-2-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/3068-20-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download