73a7006671e8d40f2fbc99536392c5a7dc9a2f736d197f6adbe1396dcf52bd70

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17/04/2024, 04:20

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General

Target

2024-04-17_f3a5842ccd2cb2e9f2dd7d72e30af464_cryptolocker.exe
Size

62KB
MD5

f3a5842ccd2cb2e9f2dd7d72e30af464
SHA1

76933969edc320155db6a22720ebd9c60acc48a9
SHA256

73a7006671e8d40f2fbc99536392c5a7dc9a2f736d197f6adbe1396dcf52bd70
SHA512

e3cd29613974de2ba98dd23aa97a06119268b142ecfe27e66e356478647079915061e731287d5442aa72bc6de9d8a5f9ccae44fdeb7c4e72558a117e55be2d25
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHaxJ:btng54SMLr+/AO/kIhfoKMHdPJ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001223d-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2300	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2292	2024-04-17_f3a5842ccd2cb2e9f2dd7d72e30af464_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
2292	2024-04-17_f3a5842ccd2cb2e9f2dd7d72e30af464_cryptolocker.exe
2300	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 2300	2292	2024-04-17_f3a5842ccd2cb2e9f2dd7d72e30af464_cryptolocker.exe	28
PID 2292 wrote to memory of 2300	2292	2024-04-17_f3a5842ccd2cb2e9f2dd7d72e30af464_cryptolocker.exe	28
PID 2292 wrote to memory of 2300	2292	2024-04-17_f3a5842ccd2cb2e9f2dd7d72e30af464_cryptolocker.exe	28
PID 2292 wrote to memory of 2300	2292	2024-04-17_f3a5842ccd2cb2e9f2dd7d72e30af464_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-17_f3a5842ccd2cb2e9f2dd7d72e30af464_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-17_f3a5842ccd2cb2e9f2dd7d72e30af464_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2292
- 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:2300

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
8fa10beb5d2993c38a548313856b79f7

SHA1
959c65f4878d055a96a1810b354abaca4a9d9f97

SHA256
d896bba0da597749502bf8644105ed8b36547e990b92c1ae5ccfeba70a6be0f7

SHA512
d799348a9f70048608c95314c0985b65138344040e77914325fd37b5cde09efad5d158797ec7895b8fbde405b4fe1af5d95047b2fdbb9040ba2262e952dc384a

Download Submit
memory/2292-0-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2292-1-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2292-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download