98c78beb986509c342dc5e1d86e7370596e39aae612192186b90c2054aa16fd7

Analysis

max time kernel
141s
max time network
139s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
13/10/2024, 08:39

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General

Target

2024-10-13_f18f5799bf4c041a45e10c91698cc8f7_cryptolocker.exe
Size

36KB
MD5

f18f5799bf4c041a45e10c91698cc8f7
SHA1

d41ff5f5a20b4023c33145a6256432f13f6b480d
SHA256

98c78beb986509c342dc5e1d86e7370596e39aae612192186b90c2054aa16fd7
SHA512

87f28c919c9e9b69faab0d883bdd7c188ab237e02270baa22117e8111260db92efac1989c19e1b4aff2a9bd33fac2764518ab5977b6cbeecde1aadff15a4340e
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT6q:qDdFJy3QMOtEvwDpjjWMl7T6q

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2592	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2036	2024-10-13_f18f5799bf4c041a45e10c91698cc8f7_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2036-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000c00000001202c-16.dat	upx
behavioral1/memory/2592-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2036-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2592-27-0x0000000000500000-0x0000000000510000-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	2024-10-13_f18f5799bf4c041a45e10c91698cc8f7_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2592	2036	2024-10-13_f18f5799bf4c041a45e10c91698cc8f7_cryptolocker.exe	30
PID 2036 wrote to memory of 2592	2036	2024-10-13_f18f5799bf4c041a45e10c91698cc8f7_cryptolocker.exe	30
PID 2036 wrote to memory of 2592	2036	2024-10-13_f18f5799bf4c041a45e10c91698cc8f7_cryptolocker.exe	30
PID 2036 wrote to memory of 2592	2036	2024-10-13_f18f5799bf4c041a45e10c91698cc8f7_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-13_f18f5799bf4c041a45e10c91698cc8f7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_f18f5799bf4c041a45e10c91698cc8f7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2592

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\asih.exe

Filesize
37KB

MD5
d92e5c9d98676baa2e08547dbf0d85db

SHA1
cc076810425e838c1911311c0d4dc7ba873eec81

SHA256
5f58f9eee97968d28f1b2126c44610776dba3aafba7dbda31699b1eab2f07a69

SHA512
4d36575cd3c4023bad358e2bcec335971da1b4e46377108ea79c55b7623a97555f2e4fb368cf680b914fe911590f989eb0c06aef7c88257b4fee149ef8662f8e

Download Submit
memory/2036-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2036-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2036-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2036-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2036-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2592-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2592-26-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2592-19-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2592-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download