0ee6063759def33e1a1479003155b149c2e0427d8c93486af3d0f949c7d971e7

Analysis

max time kernel
141s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30/09/2024, 03:32

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General

Target

2024-09-30_848a366418941f77e6337d21d95cb37c_cryptolocker.exe
Size

40KB
MD5

848a366418941f77e6337d21d95cb37c
SHA1

39d916a16f0222881ab0e5b32f3af5a0e69ff4ae
SHA256

0ee6063759def33e1a1479003155b149c2e0427d8c93486af3d0f949c7d971e7
SHA512

46ff1a10a1d4d03e7257c88d2bba5aa215df20d9a47109ef1d6d8b116bb19e710294eac190e2635970e6eadb9a9a809fd8235ed74a05343ab25d4337a77c5fac
SSDEEP

768:qTVbxjgQNQXtckstOOtEvwDpjAaD3TUogs/VXpAPWRiJ:qTJu9cvMOtEvwDpjppVXzRg

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2076	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
276	2024-09-30_848a366418941f77e6337d21d95cb37c_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/276-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000d000000012272-11.dat	upx
behavioral1/memory/276-16-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2076-26-0x0000000000500000-0x000000000050F000-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	2024-09-30_848a366418941f77e6337d21d95cb37c_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 276 wrote to memory of 2076	276	2024-09-30_848a366418941f77e6337d21d95cb37c_cryptolocker.exe	31
PID 276 wrote to memory of 2076	276	2024-09-30_848a366418941f77e6337d21d95cb37c_cryptolocker.exe	31
PID 276 wrote to memory of 2076	276	2024-09-30_848a366418941f77e6337d21d95cb37c_cryptolocker.exe	31
PID 276 wrote to memory of 2076	276	2024-09-30_848a366418941f77e6337d21d95cb37c_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-09-30_848a366418941f77e6337d21d95cb37c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-30_848a366418941f77e6337d21d95cb37c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:276
- 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:2076

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
57ae8e0cbce4e79cdf0d8496282c8650

SHA1
5a05e3a9163f254f2bdf9045ebebc10d13691064

SHA256
387fe49f6e8c29f0d551f9a800793b4fd628efcf7b8f988a7854138354586ae9

SHA512
cdcd607799a9074b92f06c3bc45684eaf77c439f6fe3b47dd60dd9687890f96f0b1f5bbb4da9a16f0da65e88ef2dbfb00115fb47211966908e32ef2c157570dd

Download Submit
memory/276-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/276-1-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/276-2-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/276-3-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/276-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2076-25-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2076-18-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2076-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download