b0f47429f4298daede9232f4b54630f506ae2b167efa8e569641cddc329b559c

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07/09/2024, 06:51

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General

Target

2024-09-07_d5a8f55e0d1ad8b0455c5afcd815611f_cryptolocker.exe
Size

82KB
MD5

d5a8f55e0d1ad8b0455c5afcd815611f
SHA1

0fac5310d86c1d3db6834a296ef2ee59be986237
SHA256

b0f47429f4298daede9232f4b54630f506ae2b167efa8e569641cddc329b559c
SHA512

b05acfe3024a7f2a26b9dc28bdb00a070c1f6f3e5f589fdce554dbe9e614a184a3dbfd0b64e1d3cfc4d39b2adf02e5f44afd2875381684916592eea743c76a85
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7Qi:zCsanOtEvwDpje

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2428	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2580	2024-09-07_d5a8f55e0d1ad8b0455c5afcd815611f_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2580-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0008000000012102-11.dat	upx
behavioral1/memory/2580-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2428-25-0x0000000000500000-0x0000000000510000-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	2024-09-07_d5a8f55e0d1ad8b0455c5afcd815611f_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 2580 wrote to memory of 2428	2580	2024-09-07_d5a8f55e0d1ad8b0455c5afcd815611f_cryptolocker.exe	30
PID 2580 wrote to memory of 2428	2580	2024-09-07_d5a8f55e0d1ad8b0455c5afcd815611f_cryptolocker.exe	30
PID 2580 wrote to memory of 2428	2580	2024-09-07_d5a8f55e0d1ad8b0455c5afcd815611f_cryptolocker.exe	30
PID 2580 wrote to memory of 2428	2580	2024-09-07_d5a8f55e0d1ad8b0455c5afcd815611f_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-07_d5a8f55e0d1ad8b0455c5afcd815611f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-07_d5a8f55e0d1ad8b0455c5afcd815611f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2580
- 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:2428

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

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

Filesize
82KB

MD5
26ac01f227bcb2c9751c985d4d3841f7

SHA1
86769a7868cfd9901c93aac696e89571ba596024

SHA256
14ca0b632a20fc8fe3bdba54b540e3753caeb18eefd64f24b4c865c4ebe80754

SHA512
339e45009994b6df4f20f31ba31daa9b08bb647d1033e4cfb031dd2bb535a60c2aeddecd4e6ac91d814f3238635dd8deb35d62d8c2be51108a8f72696d32e5b9

Download Submit
memory/2428-17-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2428-18-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2428-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2580-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2580-2-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2580-9-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2580-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2580-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download