436976ebe82df6c2d3563ad8e68b60f3d755d58681bfd37c7382ce0aa513ef0b

Analysis

max time kernel
132s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21/11/2024, 06:50

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General

Target

2024-11-21_725f062c2c078a9ddcd0fb6c8f647ff9_cryptolocker.exe
Size

60KB
MD5

725f062c2c078a9ddcd0fb6c8f647ff9
SHA1

f73910edb3d0240e39d6ad6521330b46c43133db
SHA256

436976ebe82df6c2d3563ad8e68b60f3d755d58681bfd37c7382ce0aa513ef0b
SHA512

5ac700dec37dfb57f2c0728761057e4db47aa4355f7d939e0e02ab530614458bb02ad1188491ad17fd2707092fe12b10cfdf8b6450e862022bd483fdf9b65f48
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUFH4:T6a+rdOOtEvwDpjN+Y

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1780	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1712	2024-11-21_725f062c2c078a9ddcd0fb6c8f647ff9_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1712-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000b00000001225a-11.dat	upx
behavioral1/memory/1712-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1780-25-0x0000000000500000-0x0000000000510000-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	2024-11-21_725f062c2c078a9ddcd0fb6c8f647ff9_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 1712 wrote to memory of 1780	1712	2024-11-21_725f062c2c078a9ddcd0fb6c8f647ff9_cryptolocker.exe	30
PID 1712 wrote to memory of 1780	1712	2024-11-21_725f062c2c078a9ddcd0fb6c8f647ff9_cryptolocker.exe	30
PID 1712 wrote to memory of 1780	1712	2024-11-21_725f062c2c078a9ddcd0fb6c8f647ff9_cryptolocker.exe	30
PID 1712 wrote to memory of 1780	1712	2024-11-21_725f062c2c078a9ddcd0fb6c8f647ff9_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-11-21_725f062c2c078a9ddcd0fb6c8f647ff9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-21_725f062c2c078a9ddcd0fb6c8f647ff9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1712
- 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:1780

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

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Downloads

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

Filesize
60KB

MD5
c843befd6e9de49512c77a35158cf6f1

SHA1
70c176a6d8fcf095a42beb9fe00cb0e19b92ba3b

SHA256
dce3b4212d804dc47ca587d6f36889ef30288f89df2b4c2258509e7f54942101

SHA512
9821f213a1fab5be1c9795de252137ea7371410457f888f2899ec82e27b3f3c0c5162cc51fa94482202b387e343de21059d927edeec7efa5585d492a153f6fcb

Download Submit
memory/1712-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1712-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1712-2-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/1712-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1712-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1780-17-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1780-24-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1780-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download