c4125b16e967143f605e4364b22dccfdadec7136722309e31602c7fa26ed51d6

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
08/03/2024, 11:01

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General

Target

2024-03-08_ec03f43da03fa2a4fd669d2ac021067b_cryptolocker.exe
Size

39KB
MD5

ec03f43da03fa2a4fd669d2ac021067b
SHA1

d639bae57c9884cce9f3989ad2cab7ef98f28c79
SHA256

c4125b16e967143f605e4364b22dccfdadec7136722309e31602c7fa26ed51d6
SHA512

67be7032e7c95881485ecd822c98cfad6d9957ea77c222f11ca468fbf6418ee75550d83477a99c867b1416e5c37c8acd31d16f86c3fe91b03192007b22af5214
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunrkwI+YQL1:btB9g/WItCSsAGjX7e9N0hunrkkL1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001225d-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1036	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1984	2024-03-08_ec03f43da03fa2a4fd669d2ac021067b_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
1984	2024-03-08_ec03f43da03fa2a4fd669d2ac021067b_cryptolocker.exe
1036	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 1036	1984	2024-03-08_ec03f43da03fa2a4fd669d2ac021067b_cryptolocker.exe	29
PID 1984 wrote to memory of 1036	1984	2024-03-08_ec03f43da03fa2a4fd669d2ac021067b_cryptolocker.exe	29
PID 1984 wrote to memory of 1036	1984	2024-03-08_ec03f43da03fa2a4fd669d2ac021067b_cryptolocker.exe	29
PID 1984 wrote to memory of 1036	1984	2024-03-08_ec03f43da03fa2a4fd669d2ac021067b_cryptolocker.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-03-08_ec03f43da03fa2a4fd669d2ac021067b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_ec03f43da03fa2a4fd669d2ac021067b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1984
- 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:1036

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
39KB

MD5
c69bca0f71ba7ce98937471ed27333a2

SHA1
d0ded14b61ef558c9846d1f7827ea7c00c21336b

SHA256
828a93987029403b1380ceac6dd6d78731a1064ab28937188f5b8205295e040e

SHA512
9018163e40cd7f1b692ab773e5b3811b504fd6e8cc191963f46a9a9255aceb8d381b46148638acde6bef8bff33efa41fc45e5a6b837ecb5a1cce7b5ec409ba8e

Download Submit
memory/1984-0-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1984-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1984-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download