c91e312e72f1523144907c6fc3c32cb846181fad880616c0223f2177e041b03c

Analysis

max time kernel
140s
max time network
151s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11/09/2024, 13:23

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-09-11_16dccbcbafc339729cac98072f97530a_cryptolocker.exe
Size

82KB
MD5

16dccbcbafc339729cac98072f97530a
SHA1

34583a1746b1e0200e060b1c6a4f60d165635b36
SHA256

c91e312e72f1523144907c6fc3c32cb846181fad880616c0223f2177e041b03c
SHA512

12d2591e1dd13f27f5d4a5c89d62e6e575205f561d6ebe215ca92dd267170a2dbbc279459fd2afe13f80ca33c8e102ae9d46f51105e360b4ffdb86b3d8cffdb5
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7Q4t:zCsanOtEvwDpja

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
2380	2024-09-11_16dccbcbafc339729cac98072f97530a_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2380-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000d00000001227f-11.dat	upx
behavioral1/memory/3032-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2380-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/3032-26-0x0000000000500000-0x0000000000510000-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	2024-09-11_16dccbcbafc339729cac98072f97530a_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 2380 wrote to memory of 3032	2380	2024-09-11_16dccbcbafc339729cac98072f97530a_cryptolocker.exe	31
PID 2380 wrote to memory of 3032	2380	2024-09-11_16dccbcbafc339729cac98072f97530a_cryptolocker.exe	31
PID 2380 wrote to memory of 3032	2380	2024-09-11_16dccbcbafc339729cac98072f97530a_cryptolocker.exe	31
PID 2380 wrote to memory of 3032	2380	2024-09-11_16dccbcbafc339729cac98072f97530a_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-09-11_16dccbcbafc339729cac98072f97530a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-11_16dccbcbafc339729cac98072f97530a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- 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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
83KB

MD5
8b996de033781bf087cf9e31d061a630

SHA1
b84b7412b8c326177ba7e63bb390ea31ea54408b

SHA256
e669f7d6244d2b8583b829de72374e3515b8c2c4398a2157414707783b8bc67d

SHA512
59052e0b56fa2b89575fc40caf861e81a0eb4bfcda5dac5d370b47c10dd13e8d7be04f0319acb1b4a1a3a1f6f89be48b82145a73a95b5c769ad54b3ec9ea3f6c

Download Submit
memory/2380-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2380-1-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2380-2-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2380-9-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2380-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3032-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3032-18-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/3032-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3032-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download