1ca27f6d165efb699ff1bf744eb05c9ee1f7406e88aa1b77f0eeb91110bfc408

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21/09/2024, 03:37

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General

Target

2024-09-21_9147a34077978e757b205f07da6cf9b8_cryptolocker.exe
Size

96KB
MD5

9147a34077978e757b205f07da6cf9b8
SHA1

b00d08481dab46643e5796fd863749e620641b92
SHA256

1ca27f6d165efb699ff1bf744eb05c9ee1f7406e88aa1b77f0eeb91110bfc408
SHA512

b3f2c34e59f4df5754b628ae75e989fc6a97bb505e5701dd0d2e26ca1582e16631dc1ce4697ea21daca2d36e82ac9f7d55c89a44c04f6f0e87d7b80e2b99463f
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjgx/kO+:zCsanOtEvwDpjB8

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2688	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2644	2024-09-21_9147a34077978e757b205f07da6cf9b8_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2644-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0007000000012115-11.dat	upx
behavioral1/memory/2688-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2644-16-0x0000000000500000-0x0000000000510000-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	misid.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-21_9147a34077978e757b205f07da6cf9b8_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2644 wrote to memory of 2688	2644	2024-09-21_9147a34077978e757b205f07da6cf9b8_cryptolocker.exe	30
PID 2644 wrote to memory of 2688	2644	2024-09-21_9147a34077978e757b205f07da6cf9b8_cryptolocker.exe	30
PID 2644 wrote to memory of 2688	2644	2024-09-21_9147a34077978e757b205f07da6cf9b8_cryptolocker.exe	30
PID 2644 wrote to memory of 2688	2644	2024-09-21_9147a34077978e757b205f07da6cf9b8_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-21_9147a34077978e757b205f07da6cf9b8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-21_9147a34077978e757b205f07da6cf9b8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2644
- 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:2688

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\misid.exe

Filesize
96KB

MD5
631569866c7b822bf2b261b371dc5330

SHA1
b940af585d81f48fb18416579f947c38825e7c2d

SHA256
9695ff385ebec5fa33f358a1c665d5965b344b9b346ab26ecd3f48022606859b

SHA512
4b10793d10858c397b8bf6aa58a33c12c91779f47f8cafb2c1121242545c95652b5664aab9e397ff574a54729bf22827e7a8b069a725d1d03853b41d82955fdc

Download Submit
memory/2644-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2644-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2644-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2644-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2644-13-0x0000000000630000-0x0000000000640000-memory.dmp

Filesize
64KB

Download
memory/2644-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2688-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2688-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2688-18-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download