798618163402e053d2734081379340625755ad6ae6082b0306c0880d72752ae4

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26-04-2024 15:41

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General

Target

2024-04-26_d594e090cc721259ac937efcff359d8a_cryptolocker.exe
Size

63KB
MD5

d594e090cc721259ac937efcff359d8a
SHA1

f97cdb644e5e55bea279f01da07a5c2c464a1ce5
SHA256

798618163402e053d2734081379340625755ad6ae6082b0306c0880d72752ae4
SHA512

c800ad5df895d7375b17c16757ade6873c1ad3837a7ca8cea020c804c0ec0b8467527f91ad5d800aba1076272290ff3001c03f3a033fd474322575d652557b8a
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHaxY:btng54SMLr+/AO/kIhfoKMHdPY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000015a2d-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2252	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1152	2024-04-26_d594e090cc721259ac937efcff359d8a_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
1152	2024-04-26_d594e090cc721259ac937efcff359d8a_cryptolocker.exe
2252	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1152 wrote to memory of 2252	1152	2024-04-26_d594e090cc721259ac937efcff359d8a_cryptolocker.exe	28
PID 1152 wrote to memory of 2252	1152	2024-04-26_d594e090cc721259ac937efcff359d8a_cryptolocker.exe	28
PID 1152 wrote to memory of 2252	1152	2024-04-26_d594e090cc721259ac937efcff359d8a_cryptolocker.exe	28
PID 1152 wrote to memory of 2252	1152	2024-04-26_d594e090cc721259ac937efcff359d8a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-26_d594e090cc721259ac937efcff359d8a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_d594e090cc721259ac937efcff359d8a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1152
- 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:2252

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
63KB

MD5
830e9bd1b5c1445bd9af166b443fd795

SHA1
675644d964e830dbe292fa5094d40ee37ccbbc8c

SHA256
e0093d0a9e8755646026edf5d25f61193594a7e9c40703250d2fbbac79a656aa

SHA512
f092951aee0d4681ed1d9fb55a64c6f8dc3a51625b06399f068d6d971aacf71cdfad513f6ac200782ae1788addc0b8eec6fbe1ebf09f65d6b6f63ac0f5734228

Download Submit
memory/1152-0-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/1152-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1152-8-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2252-23-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download