7cf1623182f4da4544693cd0b8f44449024a12945e826c727383afbe6d1839d1

Analysis

max time kernel
142s
max time network
145s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
15/08/2023, 17:59

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General

Target

ff41fd5678f4cfb5a373780cacca5748_cryptolocker_JC.exe
Size

96KB
MD5

ff41fd5678f4cfb5a373780cacca5748
SHA1

44cb851a105ade937748e0e83bd5be2c4078fb14
SHA256

7cf1623182f4da4544693cd0b8f44449024a12945e826c727383afbe6d1839d1
SHA512

4a02730329f13fc6e50f6992c8f6cff5a67232c792000161ea339e24358f72f5a0045a39444d3bdf7042bdbf4789683134cbd6145f9768c6eb0202f64cf30ee6
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpQb6e:AnBdOOtEvwDpj6zL

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1580	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2080	ff41fd5678f4cfb5a373780cacca5748_cryptolocker_JC.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2080-53-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x0007000000012107-64.dat	upx
behavioral1/memory/2080-67-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x0007000000012107-68.dat	upx
behavioral1/memory/1580-69-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x0007000000012107-77.dat	upx
behavioral1/memory/1580-78-0x0000000000500000-0x000000000050F000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 1580	2080	ff41fd5678f4cfb5a373780cacca5748_cryptolocker_JC.exe	28
PID 2080 wrote to memory of 1580	2080	ff41fd5678f4cfb5a373780cacca5748_cryptolocker_JC.exe	28
PID 2080 wrote to memory of 1580	2080	ff41fd5678f4cfb5a373780cacca5748_cryptolocker_JC.exe	28
PID 2080 wrote to memory of 1580	2080	ff41fd5678f4cfb5a373780cacca5748_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\ff41fd5678f4cfb5a373780cacca5748_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\ff41fd5678f4cfb5a373780cacca5748_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1580

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\asih.exe

Filesize
96KB

MD5
79fc22589ed720368bdc11f4f9074883

SHA1
71a93ea3fbbcff64b9d27b2e070a159658a6678b

SHA256
196c836f006fcbd7a8c03ae4a412b5bcc7de954c704002a38ab695449cb4c2d4

SHA512
1f7638470f9bc9481165c6e51d9fb3ed70f5933e58a6693f0636ca659314ad60b6555ba6f03e0996bb5d7d79c7a6271c3e36063768cf90c589e4508ff46c34a3

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
96KB

MD5
79fc22589ed720368bdc11f4f9074883

SHA1
71a93ea3fbbcff64b9d27b2e070a159658a6678b

SHA256
196c836f006fcbd7a8c03ae4a412b5bcc7de954c704002a38ab695449cb4c2d4

SHA512
1f7638470f9bc9481165c6e51d9fb3ed70f5933e58a6693f0636ca659314ad60b6555ba6f03e0996bb5d7d79c7a6271c3e36063768cf90c589e4508ff46c34a3

Download Submit
\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
96KB

MD5
79fc22589ed720368bdc11f4f9074883

SHA1
71a93ea3fbbcff64b9d27b2e070a159658a6678b

SHA256
196c836f006fcbd7a8c03ae4a412b5bcc7de954c704002a38ab695449cb4c2d4

SHA512
1f7638470f9bc9481165c6e51d9fb3ed70f5933e58a6693f0636ca659314ad60b6555ba6f03e0996bb5d7d79c7a6271c3e36063768cf90c589e4508ff46c34a3

Download Submit
memory/1580-69-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1580-71-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1580-78-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2080-53-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2080-54-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2080-55-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2080-57-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2080-67-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download