88c1154fc7a5af16c583611229e47a773236df4d2c3fdfc146d79b5443b7361e

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
25/09/2024, 02:27

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General

Target

2024-09-25_a0af54cf1238a4979c4a45c9a6ba58b5_cryptolocker.exe
Size

72KB
MD5

a0af54cf1238a4979c4a45c9a6ba58b5
SHA1

9b2045e77f977f755905d610a02bb81522518dd3
SHA256

88c1154fc7a5af16c583611229e47a773236df4d2c3fdfc146d79b5443b7361e
SHA512

c01b9ec70dc68bb827d6b74bf8c47f9705f8dd9d267f2da271fe2794df6884cd9bc2c353fd4b8e25c532a49c4ca868d50ea511949ba950ab4eaf0b1762ce5da7
SSDEEP

1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9O:C4Q2c94OtEvwDpj4H8zj

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2296	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
3008	2024-09-25_a0af54cf1238a4979c4a45c9a6ba58b5_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3008-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000700000001211a-11.dat	upx
behavioral1/memory/3008-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2296-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2296-27-0x0000000000500000-0x0000000000510000-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	misid.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-25_a0af54cf1238a4979c4a45c9a6ba58b5_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 2296	3008	2024-09-25_a0af54cf1238a4979c4a45c9a6ba58b5_cryptolocker.exe	30
PID 3008 wrote to memory of 2296	3008	2024-09-25_a0af54cf1238a4979c4a45c9a6ba58b5_cryptolocker.exe	30
PID 3008 wrote to memory of 2296	3008	2024-09-25_a0af54cf1238a4979c4a45c9a6ba58b5_cryptolocker.exe	30
PID 3008 wrote to memory of 2296	3008	2024-09-25_a0af54cf1238a4979c4a45c9a6ba58b5_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-25_a0af54cf1238a4979c4a45c9a6ba58b5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-25_a0af54cf1238a4979c4a45c9a6ba58b5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3008
- 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:2296

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

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

Filesize
72KB

MD5
932bf8ceee807c2b76f4d3b899eaa825

SHA1
af03147f92fb5a93e2ae75c79d2a53d53c4cb2c9

SHA256
35811a6dcd817cc861da7146066742d080c5f66ae0f766e0b56298c153e568c1

SHA512
f89a92834be84a194b07ea98f7608ae6542caa7711d0c226cd60e63830a4c9524de0bca94387c6df09e41bfcd662cbdbd63268d1c890ce1b13702d9b1307cfe0

Download Submit
memory/2296-19-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2296-26-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2296-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2296-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3008-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3008-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3008-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3008-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3008-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download