592daaed672bca5da6ba3db43af99eb37b6a83a4bea5f2cd6037eb2abab3abcc

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
01/08/2023, 15:33

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General

Target

2c10438ebdb6e8923d01feb9d6e48579_cryptolocker_JC.exe
Size

117KB
MD5

2c10438ebdb6e8923d01feb9d6e48579
SHA1

5c1e99080c8b28f61fd6cabe33ef135804e0a3f5
SHA256

592daaed672bca5da6ba3db43af99eb37b6a83a4bea5f2cd6037eb2abab3abcc
SHA512

2d849e974329f2f22b1737b258b2f892532467816f7c060ccb537dba993edd5fdb54e63052ff03799c3a7b5fad0be2e637e17c941365f2c84f89e921072848a9
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp699GNtL1B:AnBdOOtEvwDpj6zq

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2428	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1196	2c10438ebdb6e8923d01feb9d6e48579_cryptolocker_JC.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1196-54-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000a000000012029-70.dat	upx
behavioral1/memory/1196-68-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000a000000012029-65.dat	upx
behavioral1/memory/2428-71-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000a000000012029-80.dat	upx
behavioral1/memory/2428-82-0x0000000000500000-0x000000000050F000-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 1196 wrote to memory of 2428	1196	2c10438ebdb6e8923d01feb9d6e48579_cryptolocker_JC.exe	28
PID 1196 wrote to memory of 2428	1196	2c10438ebdb6e8923d01feb9d6e48579_cryptolocker_JC.exe	28
PID 1196 wrote to memory of 2428	1196	2c10438ebdb6e8923d01feb9d6e48579_cryptolocker_JC.exe	28
PID 1196 wrote to memory of 2428	1196	2c10438ebdb6e8923d01feb9d6e48579_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\2c10438ebdb6e8923d01feb9d6e48579_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\2c10438ebdb6e8923d01feb9d6e48579_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2428

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
117KB

MD5
6531b5c9f7c64c2c4cceaa78ed4d87a7

SHA1
69550e17fd235fdb0a093126a3a683b552feb57b

SHA256
33e3afae0f14da64142d73312daa7457246fe8d72eeb8065839cee17588781aa

SHA512
0dcc7ba22984fc7097912b2a68bfa6e20c7624385eeb539cff8a006a6c489a5274785840203a8e180e1f5a97f894425712d92606f68a870d1509cc0036a6a1b2

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

Filesize
117KB

MD5
6531b5c9f7c64c2c4cceaa78ed4d87a7

SHA1
69550e17fd235fdb0a093126a3a683b552feb57b

SHA256
33e3afae0f14da64142d73312daa7457246fe8d72eeb8065839cee17588781aa

SHA512
0dcc7ba22984fc7097912b2a68bfa6e20c7624385eeb539cff8a006a6c489a5274785840203a8e180e1f5a97f894425712d92606f68a870d1509cc0036a6a1b2

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

Filesize
117KB

MD5
6531b5c9f7c64c2c4cceaa78ed4d87a7

SHA1
69550e17fd235fdb0a093126a3a683b552feb57b

SHA256
33e3afae0f14da64142d73312daa7457246fe8d72eeb8065839cee17588781aa

SHA512
0dcc7ba22984fc7097912b2a68bfa6e20c7624385eeb539cff8a006a6c489a5274785840203a8e180e1f5a97f894425712d92606f68a870d1509cc0036a6a1b2

Download Submit
memory/1196-68-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1196-56-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1196-69-0x0000000000600000-0x000000000060F000-memory.dmp

Filesize
60KB

Download
memory/1196-54-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1196-57-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1196-55-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1196-81-0x0000000000600000-0x000000000060F000-memory.dmp

Filesize
60KB

Download
memory/2428-71-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2428-73-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2428-74-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2428-82-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download