06c0eb49adf96246a48b62454f7e52405e18248e072fea967b9fcb58a26ddccf

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/10/2024, 03:50

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General

Target

2024-10-04_d906f5ce7dbc6b186cb707ed7fd38854_cryptolocker.exe
Size

28KB
MD5

d906f5ce7dbc6b186cb707ed7fd38854
SHA1

ac592751f627ebc262bc9f7717ecd260dbe95f6d
SHA256

06c0eb49adf96246a48b62454f7e52405e18248e072fea967b9fcb58a26ddccf
SHA512

7d326cbd32d3aafed26ba9bca87276605f6082b7ade3d6506173b2523d5bae4d56187a33d6fc55ff27bd17c61745cc6dabe69156ce7bf9c2bebd36d6f0ce0d3f
SSDEEP

384:bFgFQrdSmuQ8WFqxpj5cpyIuYxVe3FSr+OLfjDp+0g/HNblX7QCOBqTf:bFgm5zusFUB2preAr+Ofjg0STX73OBqj

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2848	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2920	2024-10-04_d906f5ce7dbc6b186cb707ed7fd38854_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2920-0-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral1/files/0x0007000000012117-16.dat	upx
behavioral1/memory/2848-17-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral1/memory/2920-15-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral1/memory/2848-26-0x0000000008000000-0x000000000800E000-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	2024-10-04_d906f5ce7dbc6b186cb707ed7fd38854_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lossy.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2920 wrote to memory of 2848	2920	2024-10-04_d906f5ce7dbc6b186cb707ed7fd38854_cryptolocker.exe	31
PID 2920 wrote to memory of 2848	2920	2024-10-04_d906f5ce7dbc6b186cb707ed7fd38854_cryptolocker.exe	31
PID 2920 wrote to memory of 2848	2920	2024-10-04_d906f5ce7dbc6b186cb707ed7fd38854_cryptolocker.exe	31
PID 2920 wrote to memory of 2848	2920	2024-10-04_d906f5ce7dbc6b186cb707ed7fd38854_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-10-04_d906f5ce7dbc6b186cb707ed7fd38854_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-04_d906f5ce7dbc6b186cb707ed7fd38854_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2920
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2848

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

C:\Users\Admin\AppData\Local\Temp\lossy.exe

Filesize
28KB

MD5
71c914c7465b74784e7a173c05f13ffc

SHA1
a276283bc90301e6d4bc357f79b62aafaad3e666

SHA256
50e8020d674bedfb1ac14436393f7594b93b3893add14768a91bf3ed89ae397f

SHA512
bb05898408b59ee343a02667a8a2872cc75bc1e1f849b17914970da96985608aeebef8fa1efcb17e51d101033eaaab1a32ec2493dbc3b698b86ebfb2741a83bf

Download Submit
memory/2848-17-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/2848-26-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/2920-0-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/2920-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2920-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2920-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2920-15-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download