c9f9bcdcd39d3e3ac43e30cf93fd068f732ffd7bbc2757c7857c03fe07857006

Analysis

max time kernel
12s
max time network
127s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
11/01/2024, 05:55

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General

Target

2024-01-10_adf4adc38f619ae56688125f345fb628_cryptolocker.exe
Size

25KB
MD5

adf4adc38f619ae56688125f345fb628
SHA1

8286ed3e131ccc3bfe7d2dfaa898816457b3a817
SHA256

c9f9bcdcd39d3e3ac43e30cf93fd068f732ffd7bbc2757c7857c03fe07857006
SHA512

54edd194516cefea72e212411cf0113971f11e2bd4df8f08e1367b5e6d48f58daf57802b3a4a4fe700c71360fdf780b02eb297f44e5c87b4cbca1dbf5bf54ab2
SSDEEP

384:bM7Q0pjC4GybxMv01d3AcASBQMf6i/zznAn:b/yC4GyNM01GuQMNXAn

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2716	retln.exe

Loads dropped DLL 1 IoCs

pid	Process
848	2024-01-10_adf4adc38f619ae56688125f345fb628_cryptolocker.exe

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
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
848	2024-01-10_adf4adc38f619ae56688125f345fb628_cryptolocker.exe
2716	retln.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 848 wrote to memory of 2716	848	2024-01-10_adf4adc38f619ae56688125f345fb628_cryptolocker.exe	28
PID 848 wrote to memory of 2716	848	2024-01-10_adf4adc38f619ae56688125f345fb628_cryptolocker.exe	28
PID 848 wrote to memory of 2716	848	2024-01-10_adf4adc38f619ae56688125f345fb628_cryptolocker.exe	28
PID 848 wrote to memory of 2716	848	2024-01-10_adf4adc38f619ae56688125f345fb628_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-10_adf4adc38f619ae56688125f345fb628_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-10_adf4adc38f619ae56688125f345fb628_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:848
- C:\Users\Admin\AppData\Local\Temp\retln.exe
  "C:\Users\Admin\AppData\Local\Temp\retln.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\retln.exe

Filesize
25KB

MD5
095a309112c1c979b93ecb671dcb85d9

SHA1
a9406711d1f224ff95d2cecf167075082c2687d5

SHA256
9a0ba0fc6f92020b1bdac9d067811f52ca241ebded934b96c674c871cb846a5d

SHA512
719e1913a5be5ab674a00631b4eff68cf4ecc7360663f1b19809bc90711671a8f2d5ba8fbed35afc4a87a06dd4a367223bc5ad468cd5b5218d0c25989cdd1178

Download Submit
memory/848-0-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/848-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/848-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2716-21-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download