11c282f8a7ce66a271b5ead01c68e6ab349dda3017b33101a89f5f833d8bfa45

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
12/10/2024, 07:43

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General

Target

2024-10-12_781f2a2c330d18fb33c011dc06638d4d_cryptolocker.exe
Size

83KB
MD5

781f2a2c330d18fb33c011dc06638d4d
SHA1

4645d208fbd6926d0fa5688e27fa079ba128a3d0
SHA256

11c282f8a7ce66a271b5ead01c68e6ab349dda3017b33101a89f5f833d8bfa45
SHA512

f0c9174292b35593d8d55dc2cbba4824d4830085f8eaef60a616e37d1f5a4d10f84ef846066ffffe6d937b412eed00a80c17f276a483ac83b6f0e612d11ba427
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7QX4:zCsanOtEvwDpjM

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1768	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2684	2024-10-12_781f2a2c330d18fb33c011dc06638d4d_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2684-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0007000000012117-11.dat	upx
behavioral1/memory/1768-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2684-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1768-26-0x0000000000500000-0x0000000000510000-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	2024-10-12_781f2a2c330d18fb33c011dc06638d4d_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 2684 wrote to memory of 1768	2684	2024-10-12_781f2a2c330d18fb33c011dc06638d4d_cryptolocker.exe	30
PID 2684 wrote to memory of 1768	2684	2024-10-12_781f2a2c330d18fb33c011dc06638d4d_cryptolocker.exe	30
PID 2684 wrote to memory of 1768	2684	2024-10-12_781f2a2c330d18fb33c011dc06638d4d_cryptolocker.exe	30
PID 2684 wrote to memory of 1768	2684	2024-10-12_781f2a2c330d18fb33c011dc06638d4d_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-12_781f2a2c330d18fb33c011dc06638d4d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_781f2a2c330d18fb33c011dc06638d4d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684
- 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:1768

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
83KB

MD5
32b788ab78fcad6a4ab70b14156a23a6

SHA1
4fc02fe7b00eca6c631da48a6693b8dcd588adac

SHA256
46bbea7dfc04073e761243f83fc9c8be5cea7e05aea105ccc498135c9e8889c7

SHA512
0b3773eb77b748387505cf5c758facbdc2142502e0ced696e743abbc5352ab077a265453b889d86e4b15fd9c3ac81293ad0965ad6f04d56340810130ba097eed

Download Submit
memory/1768-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1768-18-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1768-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1768-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2684-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2684-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2684-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2684-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2684-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download