828aa8b661a40cbf253d50afdd282f724ca6ba75f3d7ea8a1538b0191c97f020

Analysis

max time kernel
141s
max time network
140s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13/10/2024, 02:22

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General

Target

2024-10-13_6659669f31d0d2da430e2e8be9b9ebab_cryptolocker.exe
Size

32KB
MD5

6659669f31d0d2da430e2e8be9b9ebab
SHA1

02e161df7ec7af949e6b47442f0bd3668e5e0f1a
SHA256

828aa8b661a40cbf253d50afdd282f724ca6ba75f3d7ea8a1538b0191c97f020
SHA512

c1cced0361205024efe3eb524725cb16fd1b4ded7f8d528ed66d3c4febc73a0cc40612d8d4efda0343a993ed3511589aaf6a21eb09da2c91a28505d6727f96c3
SSDEEP

768:qUmnjFom/kLyMro2GtOOtEvwDpjeMLa7Zl:qUmnpomddpMOtEvwDpjja/

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1864	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2380	2024-10-13_6659669f31d0d2da430e2e8be9b9ebab_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2380-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000d000000012261-11.dat	upx
behavioral1/memory/1864-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2380-16-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/1864-27-0x0000000000500000-0x000000000050F000-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	2024-10-13_6659669f31d0d2da430e2e8be9b9ebab_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 2380 wrote to memory of 1864	2380	2024-10-13_6659669f31d0d2da430e2e8be9b9ebab_cryptolocker.exe	30
PID 2380 wrote to memory of 1864	2380	2024-10-13_6659669f31d0d2da430e2e8be9b9ebab_cryptolocker.exe	30
PID 2380 wrote to memory of 1864	2380	2024-10-13_6659669f31d0d2da430e2e8be9b9ebab_cryptolocker.exe	30
PID 2380 wrote to memory of 1864	2380	2024-10-13_6659669f31d0d2da430e2e8be9b9ebab_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-13_6659669f31d0d2da430e2e8be9b9ebab_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_6659669f31d0d2da430e2e8be9b9ebab_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- 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:1864

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
32KB

MD5
12968b2a72a84693837565b3df3a6e96

SHA1
ef58ca759c2ec15c6a9243e2a96f092b66faf4b9

SHA256
00b7a26fdbf108cf14b8f3e13dade2ed3d6979cc5da35e8f812616b542508be2

SHA512
e8a78c7274c15e3cbae2f457c39109a5a4d5b7565e30182fd9a2b7b08fafda72d490fb96ab6398726347809a6e5c3544e0b57f5327fab07be71668b0d0f594f7

Download Submit
memory/1864-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1864-19-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1864-20-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1864-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2380-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2380-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2380-9-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2380-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2380-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download