95575a99fad0c150b31a67dfce35f23112b39af43f427f5ec137f522f43025e3

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
19/09/2024, 03:29

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General

Target

2024-09-19_63239021df28efb5b3aea2e308f57c9e_cryptolocker.exe
Size

40KB
MD5

63239021df28efb5b3aea2e308f57c9e
SHA1

71dbcb549727e98844b777e96ac5ff9a5adb89e9
SHA256

95575a99fad0c150b31a67dfce35f23112b39af43f427f5ec137f522f43025e3
SHA512

30f33f24a457605d9e4e63e03215d2a19991a1e2555a29044594a1f915e72a2ffdcd1d36504e305024c0d9892a3d44b4d1ca1e662f24b7645a6fbd66714201df
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYaBp:qDdFJy3QMOtEvwDpjjWMl7TdP

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2628	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1956	2024-09-19_63239021df28efb5b3aea2e308f57c9e_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1956-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00080000000120fb-11.dat	upx
behavioral1/memory/2628-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1956-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2628-27-0x0000000000500000-0x0000000000510000-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	2024-09-19_63239021df28efb5b3aea2e308f57c9e_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 1956 wrote to memory of 2628	1956	2024-09-19_63239021df28efb5b3aea2e308f57c9e_cryptolocker.exe	30
PID 1956 wrote to memory of 2628	1956	2024-09-19_63239021df28efb5b3aea2e308f57c9e_cryptolocker.exe	30
PID 1956 wrote to memory of 2628	1956	2024-09-19_63239021df28efb5b3aea2e308f57c9e_cryptolocker.exe	30
PID 1956 wrote to memory of 2628	1956	2024-09-19_63239021df28efb5b3aea2e308f57c9e_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-19_63239021df28efb5b3aea2e308f57c9e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_63239021df28efb5b3aea2e308f57c9e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1956
- 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:2628

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
40KB

MD5
12f84f274642f40f217e654574d64c2b

SHA1
6e5bb91786109824341c3f0c325c3ff70d23c036

SHA256
5a28371bda6bd0b6b608e744fbeb8f9476aa32785852d7daaea6e8877a521c21

SHA512
2f5b4ced1b2fb987d4d642a83684757aae48ea50ae3377f9b77a403e35c56821fffa53b630d568b69edd91cde3f1568311224851089efdd544f848e7148ceb62

Download Submit
memory/1956-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1956-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1956-2-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/1956-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1956-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2628-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2628-26-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2628-19-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2628-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download