6381b428dde45f874dd3699882a3b6dbf6a1f7fc8a1acd0206a89631d6084741

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
14/03/2024, 06:45

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General

Target

2024-03-14_1c5497bb1aa23fc78002c58a80841557_cryptolocker.exe
Size

44KB
MD5

1c5497bb1aa23fc78002c58a80841557
SHA1

e257e006e0030eb3485c422059b3bb6560129829
SHA256

6381b428dde45f874dd3699882a3b6dbf6a1f7fc8a1acd0206a89631d6084741
SHA512

f64a19394f813ce8594d44c82c1bbeb3d36285664624f0729e107c08e291fb6a05bcba0611cd811423c67c523317d8868d8b287cf2ab0089e46b119e29fbf408
SSDEEP

768:btB9g/WItCSsAGjX7r3BPOMHocM4vUUOmJ+96egDc:btB9g/xtCSKfxLIcMzUw96nc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012241-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2460	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2692	2024-03-14_1c5497bb1aa23fc78002c58a80841557_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
2692	2024-03-14_1c5497bb1aa23fc78002c58a80841557_cryptolocker.exe
2460	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2460	2692	2024-03-14_1c5497bb1aa23fc78002c58a80841557_cryptolocker.exe	28
PID 2692 wrote to memory of 2460	2692	2024-03-14_1c5497bb1aa23fc78002c58a80841557_cryptolocker.exe	28
PID 2692 wrote to memory of 2460	2692	2024-03-14_1c5497bb1aa23fc78002c58a80841557_cryptolocker.exe	28
PID 2692 wrote to memory of 2460	2692	2024-03-14_1c5497bb1aa23fc78002c58a80841557_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-14_1c5497bb1aa23fc78002c58a80841557_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_1c5497bb1aa23fc78002c58a80841557_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2692
- 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:2460

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
44KB

MD5
58671f25de4c50eb2188ccd39a862a99

SHA1
94dabbc3ff71966970a21dd24fcf1a8436543c10

SHA256
9db878762874ee84411ac5cd3bbabaa141835bd976738d64b5ed5c2c3e939788

SHA512
0a17b538b8f1916a497801b2df48958c42b679db6d95bf64e3871e823a30be8debf47a254dcb666c9b0185d828f29cf2594dceb4cffb0010879d1c66655610ac

Download Submit
memory/2460-18-0x00000000001F0000-0x00000000001F6000-memory.dmp

Filesize
24KB

Download
memory/2692-0-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2692-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2692-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download