2c7a3f60c039ebdc28ef6247b91fbc78b01f47dec00e3a9c6c04f1c5bd2ad272

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-09-2024 12:34

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-09-05_a3b461521ca3dc46dff2ff6d13da2c56_cryptolocker.exe
Size

72KB
MD5

a3b461521ca3dc46dff2ff6d13da2c56
SHA1

8d9dc94cbcb89714f6aba406b2e08d5196e3db85
SHA256

2c7a3f60c039ebdc28ef6247b91fbc78b01f47dec00e3a9c6c04f1c5bd2ad272
SHA512

c7a5cda651e743e33928eb17c1f09523eaa55be7e30a97c3081f44a1d092af0ffbd3b1670a11733eb1ff0c4d18b9fcb2981f8bac77ca4252a75395fde68b190a
SSDEEP

1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs91:C4Q2c94OtEvwDpj4H8z8

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2336	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2256	2024-09-05_a3b461521ca3dc46dff2ff6d13da2c56_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2256-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000b000000012281-11.dat	upx
behavioral1/memory/2336-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2256-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2336-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-05_a3b461521ca3dc46dff2ff6d13da2c56_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	misid.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 2336	2256	2024-09-05_a3b461521ca3dc46dff2ff6d13da2c56_cryptolocker.exe	31
PID 2256 wrote to memory of 2336	2256	2024-09-05_a3b461521ca3dc46dff2ff6d13da2c56_cryptolocker.exe	31
PID 2256 wrote to memory of 2336	2256	2024-09-05_a3b461521ca3dc46dff2ff6d13da2c56_cryptolocker.exe	31
PID 2256 wrote to memory of 2336	2256	2024-09-05_a3b461521ca3dc46dff2ff6d13da2c56_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-09-05_a3b461521ca3dc46dff2ff6d13da2c56_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_a3b461521ca3dc46dff2ff6d13da2c56_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2336

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
73KB

MD5
d7fe6af0958572aaa9ce1b908e5d6da1

SHA1
fa7816d42933d36e45fed1770713f6e932b7132c

SHA256
d425a87b12186415f8a66bb652842b7a15e941c3870b51e106c05234e828fa9b

SHA512
fff63fc84c19ec85c6a680608da0ad43037141a530782276dc9e787478e31fd1f249e30024d433e88995bc41eb3230b351f085f092ae230c5d4a52b8ebef499b

Download Submit
memory/2256-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2256-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2256-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2256-3-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2256-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2336-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2336-19-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2336-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download