96b6b61e91732c8265074249b1a0e26f83a45314e3d018c619ac997b1b88d107

Analysis

max time kernel
132s
max time network
140s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
05/09/2024, 12:25

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General

Target

2024-09-05_082e9055df448dfe1f666bada7435f88_cryptolocker.exe
Size

68KB
MD5

082e9055df448dfe1f666bada7435f88
SHA1

b0df4c10f0c958a1e9d880f575cb732efbde3d03
SHA256

96b6b61e91732c8265074249b1a0e26f83a45314e3d018c619ac997b1b88d107
SHA512

38aa300e05aa04a1ee6a86bb7898700be6e47d87cea5ec8c76feba2da778503e33b0038cbdd056e3ac9bca1e42f34da03857c522dba7802c63024a2f3fd44a3e
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYibAoQRm:1nK6a+qdOOtEvwDpjX

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2572	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2416	2024-09-05_082e9055df448dfe1f666bada7435f88_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2416-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x0009000000012286-15.dat	upx
behavioral1/memory/2416-16-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/2572-26-0x0000000000500000-0x000000000050F311-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_082e9055df448dfe1f666bada7435f88_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 2572	2416	2024-09-05_082e9055df448dfe1f666bada7435f88_cryptolocker.exe	28
PID 2416 wrote to memory of 2572	2416	2024-09-05_082e9055df448dfe1f666bada7435f88_cryptolocker.exe	28
PID 2416 wrote to memory of 2572	2416	2024-09-05_082e9055df448dfe1f666bada7435f88_cryptolocker.exe	28
PID 2416 wrote to memory of 2572	2416	2024-09-05_082e9055df448dfe1f666bada7435f88_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-09-05_082e9055df448dfe1f666bada7435f88_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_082e9055df448dfe1f666bada7435f88_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2572

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

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Downloads

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

Filesize
69KB

MD5
452796d4840d4d0b97f99d9eba70a801

SHA1
de877fe85dafab2ff7a3ac0c105e73dca384deea

SHA256
35e2a206ebead1a1ea1a60632b8da20d039382ea1675b73a0ab79a0e8be07491

SHA512
c1db4232e2a2af464981e4c30bb51056f323413a6078482767464406a9190cdd441927d9c0bb4c9660e4b13d6bf2a4d08d407ec85c2d6db13441001c39a3b0ef

Download Submit
memory/2416-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2416-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2416-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2416-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2416-14-0x00000000005F0000-0x0000000000600000-memory.dmp

Filesize
64KB

Download
memory/2416-16-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2572-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2572-18-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2572-26-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download