0a4b5d9b2c38c7293d179b2a04e5b79f1817b373e2df19efaee16266044baa69

Analysis

max time kernel
144s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
15/06/2024, 11:34

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General

Target

2024-06-15_d1f7643dc5b84ab136643f3149f39987_cryptolocker.exe
Size

63KB
MD5

d1f7643dc5b84ab136643f3149f39987
SHA1

4cd923dd683a51ab8567cbe3d47b0bcf289d45dd
SHA256

0a4b5d9b2c38c7293d179b2a04e5b79f1817b373e2df19efaee16266044baa69
SHA512

687f58ca1c5a83d0d817ec8d52a0ebe20c6bad9ecf8794ad644db0937695f7b8540d262a4aeb7eb9f78b57f797445801633aa26aa5ca0f79ff947f29b32faefc
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZnxP:btng54SMLr+/AO/kIhfoKMHdap

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012263-14.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2944	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2180	2024-06-15_d1f7643dc5b84ab136643f3149f39987_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
2180	2024-06-15_d1f7643dc5b84ab136643f3149f39987_cryptolocker.exe
2944	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2944	2180	2024-06-15_d1f7643dc5b84ab136643f3149f39987_cryptolocker.exe	29
PID 2180 wrote to memory of 2944	2180	2024-06-15_d1f7643dc5b84ab136643f3149f39987_cryptolocker.exe	29
PID 2180 wrote to memory of 2944	2180	2024-06-15_d1f7643dc5b84ab136643f3149f39987_cryptolocker.exe	29
PID 2180 wrote to memory of 2944	2180	2024-06-15_d1f7643dc5b84ab136643f3149f39987_cryptolocker.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-06-15_d1f7643dc5b84ab136643f3149f39987_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-15_d1f7643dc5b84ab136643f3149f39987_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2180
- 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:2944

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
63KB

MD5
2523f4deb6891258504a747f7737fb84

SHA1
4c5461727e559a214b636513d0f14c26b4d2f476

SHA256
eac47470483303a263c96b656a806cc96647cbcb8bd4199cee620d994042f33c

SHA512
a870607a4b2191b00b9b3f0c5e14135ad8327993411b6df6b19f3ce86cf4a0b0893d0607e5983233bfffe05104cd3aa2aaf496644ca3ed525a803044be8986ec

Download Submit
memory/2180-0-0x0000000000820000-0x0000000000826000-memory.dmp

Filesize
24KB

Download
memory/2180-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2180-8-0x0000000000820000-0x0000000000826000-memory.dmp

Filesize
24KB

Download
memory/2944-23-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download