6c12068b444c60aba456ce24f3af0f9c87de0a474bad743d61c621487a7dff2c

Analysis

max time kernel
134s
max time network
143s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
05-09-2024 12:18

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General

Target

2024-09-05_f483db3db47af437da6fb88545425639_cryptolocker.exe
Size

82KB
MD5

f483db3db47af437da6fb88545425639
SHA1

f3c26d883568746cbf806409ee2c3b11e743da3f
SHA256

6c12068b444c60aba456ce24f3af0f9c87de0a474bad743d61c621487a7dff2c
SHA512

79d114a2b6a2d5abeafce51d18959834c2105d47a16e466b3ed6860030cd3a1b62a8b9a3e5b245c41bbbbc2c50c3febeba63cbae9508e96e711fb9fd76296ebd
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7Qil:zCsanOtEvwDpji

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3032	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
3012	2024-09-05_f483db3db47af437da6fb88545425639_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3012-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00090000000120fb-11.dat	upx
behavioral1/memory/3012-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/3032-25-0x0000000000500000-0x0000000000510000-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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-05_f483db3db47af437da6fb88545425639_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 3012 wrote to memory of 3032	3012	2024-09-05_f483db3db47af437da6fb88545425639_cryptolocker.exe	30
PID 3012 wrote to memory of 3032	3012	2024-09-05_f483db3db47af437da6fb88545425639_cryptolocker.exe	30
PID 3012 wrote to memory of 3032	3012	2024-09-05_f483db3db47af437da6fb88545425639_cryptolocker.exe	30
PID 3012 wrote to memory of 3032	3012	2024-09-05_f483db3db47af437da6fb88545425639_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-05_f483db3db47af437da6fb88545425639_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_f483db3db47af437da6fb88545425639_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3012
- 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:3032

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
82KB

MD5
c96f5752ebf26ab43d5d8ddb95419746

SHA1
43437d315f5ee12c2851e70ea2e80e3c4ec41f09

SHA256
c338a4f4a3ceb30ffb85b813ce8b5923570a108154482f78daedc5ec845a6a96

SHA512
c170667b8b4b2e71e2077310a34c2d210eb430885bd5c02eee7376d126c1b83d851efebb743729d39d0e6b7c99f6a4439145d600fd578af6056b2f71bf301555

Download Submit
memory/3012-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3012-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3012-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3012-2-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/3012-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3032-17-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/3032-24-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3032-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download