b9021e743cc780c164a915517613654e33ef7f9a3edbd1c854f9f1690e6be1db

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
19/09/2024, 03:29

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General

Target

2024-09-19_63d78e160bf41f906846dc1a714f421f_cryptolocker.exe
Size

90KB
MD5

63d78e160bf41f906846dc1a714f421f
SHA1

4ce14e546020e510034dba6425da847402bd8725
SHA256

b9021e743cc780c164a915517613654e33ef7f9a3edbd1c854f9f1690e6be1db
SHA512

fee242f38319ffbd70689f95337d92b568a90691e8a748415ab76e5dd84dfc83fe55d4d928589ab5d4d1896be4ec15a7f58f5673be9dfcf5afe724ac0329004c
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRMy8tyblJ:zCsanOtEvwDpjC

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2252	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2400	2024-09-19_63d78e160bf41f906846dc1a714f421f_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2400-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00090000000120d6-11.dat	upx
behavioral1/memory/2252-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2400-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2252-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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	misid.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-19_63d78e160bf41f906846dc1a714f421f_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 2252	2400	2024-09-19_63d78e160bf41f906846dc1a714f421f_cryptolocker.exe	28
PID 2400 wrote to memory of 2252	2400	2024-09-19_63d78e160bf41f906846dc1a714f421f_cryptolocker.exe	28
PID 2400 wrote to memory of 2252	2400	2024-09-19_63d78e160bf41f906846dc1a714f421f_cryptolocker.exe	28
PID 2400 wrote to memory of 2252	2400	2024-09-19_63d78e160bf41f906846dc1a714f421f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-09-19_63d78e160bf41f906846dc1a714f421f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_63d78e160bf41f906846dc1a714f421f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2400
- 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:2252

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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
90KB

MD5
6c4fdb31f65c633363df6a70094cd622

SHA1
56c76709e94e6432081e46a0ebedb90d4e980ff9

SHA256
17219efabf958628786df8bb249a4c4f8fef4a8bda9b740e3ab63d199688d445

SHA512
af3d1e182db5e3d1f11bfe41051f53fe2b36ee8cb7b2de68bde64c89cc228a16dd52a50154d894cb36b166b6fb4e6e26eb7ef891dad89c61f4e5200dd6a461d3

Download Submit
memory/2252-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2252-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2252-19-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2252-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2400-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2400-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2400-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2400-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2400-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download