d3ba497ce73ef2c512bd1962955e1868cc4b31872926914c078b717fce621c5b

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
10/05/2024, 03:57

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General

Target

2024-05-10_899f3ceff1bd844b1424024d7d3124ba_cryptolocker.exe
Size

38KB
MD5

899f3ceff1bd844b1424024d7d3124ba
SHA1

d9e4996008e7d7c1dee6707263d1bc2f73d47ba7
SHA256

d3ba497ce73ef2c512bd1962955e1868cc4b31872926914c078b717fce621c5b
SHA512

c6e8c6b08f84a25e40f878fa50b123fb557f3fce6812052d718236fae3ab82212115727dc5288e49192a7e40250cf4cc5380d0f66d0e5477a4bccc377dab4a2b
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSyHmYvV8Z3:btB9g/WItCSsAGjX7e9N0hunRvGIV8Z3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000014120-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2316	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2848	2024-05-10_899f3ceff1bd844b1424024d7d3124ba_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
2848	2024-05-10_899f3ceff1bd844b1424024d7d3124ba_cryptolocker.exe
2316	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 2316	2848	2024-05-10_899f3ceff1bd844b1424024d7d3124ba_cryptolocker.exe	28
PID 2848 wrote to memory of 2316	2848	2024-05-10_899f3ceff1bd844b1424024d7d3124ba_cryptolocker.exe	28
PID 2848 wrote to memory of 2316	2848	2024-05-10_899f3ceff1bd844b1424024d7d3124ba_cryptolocker.exe	28
PID 2848 wrote to memory of 2316	2848	2024-05-10_899f3ceff1bd844b1424024d7d3124ba_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-10_899f3ceff1bd844b1424024d7d3124ba_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_899f3ceff1bd844b1424024d7d3124ba_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2848
- 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:2316

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
ad5e307bee1403b4ebf78b1ceba6ef5a

SHA1
9dcee4f01a68762f4e345aeefe80cae2910c07ed

SHA256
4b859fa26e7179208963dbe4cd55800a7ebd67651e697bf7b7c4af0270ad8f07

SHA512
3160f5f7f5fa379d3be38659932aaca4bfa639e31f05a2adad1e1cb11e2e1c7f68a4c3b3b0b858c58187f259bb08dc8868ac42bc7da01093eb5f7c85b87c3066

Download Submit
memory/2316-23-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2848-8-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2848-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2848-0-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download