99cc5ad2c6d9dbd2252a17d74ea7f2496c51db67fc80d393953154438623b095

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
02-11-2024 06:23

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General

Target

2024-11-02_bd1a1f314532d10f21fbe4075cac5ceb_cryptolocker.exe
Size

82KB
MD5

bd1a1f314532d10f21fbe4075cac5ceb
SHA1

59199b01a687cced9f32e931b4f5c400a21471e7
SHA256

99cc5ad2c6d9dbd2252a17d74ea7f2496c51db67fc80d393953154438623b095
SHA512

25baa973724306c19be8bd9a900f0bed816494b248fe9c9190fc4b526003c02187a320eb3e1cf50577dfe95e805a58673cefc87c3b0d30fb691025c28f622050
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7QI:zCsanOtEvwDpjM

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

2312 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-11-02_bd1a1f314532d10f21fbe4075cac5ceb_cryptolocker.exe

pid process

3052 2024-11-02_bd1a1f314532d10f21fbe4075cac5ceb_cryptolocker.exe

pid	process
2312	misid.exe

pid	process
3052	2024-11-02_bd1a1f314532d10f21fbe4075cac5ceb_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/3052-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
\Users\Admin\AppData\Local\Temp\misid.exe	upx
behavioral1/memory/3052-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2312-25-0x0000000000500000-0x0000000000510000-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

Processes:

2024-11-02_bd1a1f314532d10f21fbe4075cac5ceb_cryptolocker.exemisid.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-02_bd1a1f314532d10f21fbe4075cac5ceb_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	misid.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-11-02_bd1a1f314532d10f21fbe4075cac5ceb_cryptolocker.exe

description	pid	process	target process
PID 3052 wrote to memory of 2312	3052	2024-11-02_bd1a1f314532d10f21fbe4075cac5ceb_cryptolocker.exe	misid.exe
PID 3052 wrote to memory of 2312	3052	2024-11-02_bd1a1f314532d10f21fbe4075cac5ceb_cryptolocker.exe	misid.exe
PID 3052 wrote to memory of 2312	3052	2024-11-02_bd1a1f314532d10f21fbe4075cac5ceb_cryptolocker.exe	misid.exe
PID 3052 wrote to memory of 2312	3052	2024-11-02_bd1a1f314532d10f21fbe4075cac5ceb_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-02_bd1a1f314532d10f21fbe4075cac5ceb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-02_bd1a1f314532d10f21fbe4075cac5ceb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3052

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:2312

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
83KB

MD5
31502e181398e5a2d89ca744c71f159f

SHA1
e034c700643ef87a1154d7017ff0ef49db2e4b1c

SHA256
edd11477089e65e6e367fd1712ab0dd715bf453fa0ab15cc6ec9f5fdf1504437

SHA512
03a6768428ef68639325491f9258be3ebd5984ec325a05989f678aaab9f21903739cfc941172df252101dc2dce09573d39f39994464145da7d1a41b76cfd92e8

Download Submit
memory/2312-17-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2312-24-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2312-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3052-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3052-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/3052-9-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/3052-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/3052-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download