12d21547885b85142b25f05a0a63f1c415a3f1cb120fb711fac05243911f10e2

Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/05/2024, 18:47

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General

Target

2024-05-29_0766bdeec3b7cba3a08c78b23c1f8351_cryptolocker.exe
Size

45KB
MD5

0766bdeec3b7cba3a08c78b23c1f8351
SHA1

377995d33c996381c110aa35b3b7034584ca9dcc
SHA256

12d21547885b85142b25f05a0a63f1c415a3f1cb120fb711fac05243911f10e2
SHA512

84ba433798c9283a193c09aae8e058b2263d3ddc24413fd50739cea10cd8dab2ad712cac08d935f56964e69a272b338f3e1ac50ee93ac747dab2594c57868445
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunrkwIxZWQpyL:btB9g/WItCSsAGjX7e9N0hunrknljKrr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000014698-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2560	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2656	2024-05-29_0766bdeec3b7cba3a08c78b23c1f8351_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
2656	2024-05-29_0766bdeec3b7cba3a08c78b23c1f8351_cryptolocker.exe
2560	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2656 wrote to memory of 2560	2656	2024-05-29_0766bdeec3b7cba3a08c78b23c1f8351_cryptolocker.exe	28
PID 2656 wrote to memory of 2560	2656	2024-05-29_0766bdeec3b7cba3a08c78b23c1f8351_cryptolocker.exe	28
PID 2656 wrote to memory of 2560	2656	2024-05-29_0766bdeec3b7cba3a08c78b23c1f8351_cryptolocker.exe	28
PID 2656 wrote to memory of 2560	2656	2024-05-29_0766bdeec3b7cba3a08c78b23c1f8351_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-29_0766bdeec3b7cba3a08c78b23c1f8351_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-29_0766bdeec3b7cba3a08c78b23c1f8351_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2656
- 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:2560

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
45KB

MD5
37c0b913be52f4be52581bac87d3c6fc

SHA1
640237ec9086b22568486a4157f12f6db45db346

SHA256
6424c6e72db00d9118a62cfd4393969f84e090ef6ae986691d74069599367928

SHA512
976f0125d0fde4cfdc47813332286e1bec610f4ab06ce10059b4964f54e14fcb9ce807830eeffd36af81f153cd8fde3d5c0bc4f57269999a6af9e74d2064e440

Download Submit
memory/2560-23-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2656-0-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2656-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2656-8-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download