6369200703155abe6ced76558ac7c19eafbaf45bc638501c4babd625fd753abc

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30/04/2024, 16:06

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General

Target

2024-04-30_ef12af239979c975be1b486d3b26caca_cryptolocker.exe
Size

60KB
MD5

ef12af239979c975be1b486d3b26caca
SHA1

b3f1d537f660f0751665aaa2ecca27495dba9926
SHA256

6369200703155abe6ced76558ac7c19eafbaf45bc638501c4babd625fd753abc
SHA512

263e91bd57c9bc74c957269b7b7046ec090bd191cbefd883fe4248bdc4f50299782e91172318e47c39594df06b00630b89300b56bdcc98a1701dadadd32eaf38
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZnI:btng54SMLr+/AO/kIhfoKMHdaI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014319-22.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2124	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2128	2024-04-30_ef12af239979c975be1b486d3b26caca_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
2128	2024-04-30_ef12af239979c975be1b486d3b26caca_cryptolocker.exe
2124	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2124	2128	2024-04-30_ef12af239979c975be1b486d3b26caca_cryptolocker.exe	28
PID 2128 wrote to memory of 2124	2128	2024-04-30_ef12af239979c975be1b486d3b26caca_cryptolocker.exe	28
PID 2128 wrote to memory of 2124	2128	2024-04-30_ef12af239979c975be1b486d3b26caca_cryptolocker.exe	28
PID 2128 wrote to memory of 2124	2128	2024-04-30_ef12af239979c975be1b486d3b26caca_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_ef12af239979c975be1b486d3b26caca_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_ef12af239979c975be1b486d3b26caca_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2128
- 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:2124

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

C:\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
61KB

MD5
6d269194e263c3df81b59b0da4587a67

SHA1
332cad5d85e0f6ab976770ebb6f931fa5055c6d2

SHA256
2f12ae0a5ef0a303fd0c67d3fe9250d062f060087a040453916522ddaf4b709b

SHA512
33b8011581368461af981d46f500a002096492b2944e7946ffce3b99bb6a8d55165ffc79c5cc68044923a9dc33dbded55c927abf7c5832a34ae43c279b131bb5

Download Submit
memory/2124-23-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2128-8-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2128-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2128-0-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download