d143de38138355352bfc402be7dcd162ed401a31dc6452791667cde020d92a27

Analysis

max time kernel
121s
max time network
134s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/03/2024, 21:56

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General

Target

2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_cryptolocker.exe
Size

42KB
MD5

d9a26b386a86c1656d1c4a73f07840d1
SHA1

af60219ff56e26d745dd00c1477f50b83ff14320
SHA256

d143de38138355352bfc402be7dcd162ed401a31dc6452791667cde020d92a27
SHA512

e262ad1e17c506abb0a70cf3e14b033144f40d561a8928192d3c26e0b449bb508d4b72fee0b98e36b45fe7dd73f06f3bb9a0ee597dd10e135bb75c59d79aa035
SSDEEP

768:btB9g/WItCSsAGjX7r3BPOMHoc/QQJPCQ:btB9g/xtCSKfxLIc/X

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001225b-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2664	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2600	2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_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
2600	2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_cryptolocker.exe
2664	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2600 wrote to memory of 2664	2600	2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_cryptolocker.exe	27
PID 2600 wrote to memory of 2664	2600	2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_cryptolocker.exe	27
PID 2600 wrote to memory of 2664	2600	2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_cryptolocker.exe	27
PID 2600 wrote to memory of 2664	2600	2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_cryptolocker.exe	27

C:\Users\Admin\AppData\Local\Temp\2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2600
- 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:2664

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
42KB

MD5
a8ff3869f113b6a9cf760b382ce1f7f7

SHA1
9a4f0dc35f49d575d704e1840e61f51c3526bf78

SHA256
29b71ba0174abc25d6f12770590de965d325d21e734c8ea220190787e46b9d3d

SHA512
ad14370c645dcabfc66bd6238eb79e2499e4684c91f38b2b201ff78c5d291b64cd91bb95c1cc9ad55fcd7c287d04678ed9ec87496231a1e5b163a371d9eaa8f4

Download Submit
memory/2600-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2600-1-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2600-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2664-23-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download