acbd49be418753704ef8f15300a8579959d3c6a7ccaf5c90d7207041f3a31e70

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/09/2024, 04:30

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General

Target

2024-09-19_93e3b65aa14cc60a5ec91b8db4cbd6fa_cryptolocker.exe
Size

73KB
MD5

93e3b65aa14cc60a5ec91b8db4cbd6fa
SHA1

fdba5f2ccfb57297e887b6b3a15b21da05fa6eeb
SHA256

acbd49be418753704ef8f15300a8579959d3c6a7ccaf5c90d7207041f3a31e70
SHA512

ffba4ecb4afdcfbca8e1d536c74c1950f2e3628748b6ad56ede2acfb1a3bb60e62347f519caf48fa1f0062330f4bdc73676232ddde79c75e77f913aeacc1c646
SSDEEP

1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9Lo:C4Q2c94OtEvwDpj4H8zF

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2836	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1688	2024-09-19_93e3b65aa14cc60a5ec91b8db4cbd6fa_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1688-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1688-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000b000000012261-11.dat	upx
behavioral1/memory/2836-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2836-27-0x0000000000500000-0x0000000000510000-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	2024-09-19_93e3b65aa14cc60a5ec91b8db4cbd6fa_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 1688 wrote to memory of 2836	1688	2024-09-19_93e3b65aa14cc60a5ec91b8db4cbd6fa_cryptolocker.exe	30
PID 1688 wrote to memory of 2836	1688	2024-09-19_93e3b65aa14cc60a5ec91b8db4cbd6fa_cryptolocker.exe	30
PID 1688 wrote to memory of 2836	1688	2024-09-19_93e3b65aa14cc60a5ec91b8db4cbd6fa_cryptolocker.exe	30
PID 1688 wrote to memory of 2836	1688	2024-09-19_93e3b65aa14cc60a5ec91b8db4cbd6fa_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-19_93e3b65aa14cc60a5ec91b8db4cbd6fa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_93e3b65aa14cc60a5ec91b8db4cbd6fa_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1688
- 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:2836

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
73KB

MD5
760e5cd07bd2be8de3ac4ccb68d3eadc

SHA1
68a02d75c7bd523e19bd2ea88edcb57b57deb736

SHA256
4c310ebc6f2ea29064350af5be659bf34b5d8325be84ad64b1befecf66487e2a

SHA512
e158b3a786f45a25e77a4f7869cc2e6beafbadf1ebe10d02f6467d1e474f14c9427f1596a4cc09a39c4069dd31440f2e25e2f2bcc49495224317a2ad13d4180b

Download Submit
memory/1688-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1688-2-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/1688-9-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1688-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1688-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2836-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2836-19-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2836-20-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2836-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download