deddb8383fc1b2f35138408351d07b090b9bd8dd3bd43e04d5c3ffd42a6d003a

Analysis

max time kernel
15s
max time network
19s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16/09/2024, 06:01

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Ransom.Win32.Tescrypt.exe
Size

68KB
MD5

ea181c784d007ed62403d5a6c766a610
SHA1

a0edb8ef1fd5674a36adc48c218ae951cf17d1c3
SHA256

deddb8383fc1b2f35138408351d07b090b9bd8dd3bd43e04d5c3ffd42a6d003a
SHA512

34e7c090f22544f01e416c560bdd510bfcba9e0d002567c6050dfd748000abef1bf61d6704f0cde481f0ac90a62134a3b1cd8c6041708152de2a190422c6572a
SSDEEP

1536:fgWJBwVSclkxvodVSXq7vTFtb47XPArcxvgLLqZ10CmuJdr:fgWJi1kxvqVCq7LFtE7/ArcxkOZ1Bbdr

Score

7^/10

discovery upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2176	Ransom.Win32.Tescrypt.exe

Executes dropped EXE 1 IoCs

pid	Process
2176	Ransom.Win32.Tescrypt.exe

Loads dropped DLL 1 IoCs

pid	Process
2276	Ransom.Win32.Tescrypt.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2276-0-0x0000000000400000-0x000000000043A000-memory.dmp	upx
behavioral1/files/0x0008000000012101-10.dat	upx
behavioral1/memory/2276-12-0x00000000001F0000-0x000000000022A000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 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	Ransom.Win32.Tescrypt.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2276	Ransom.Win32.Tescrypt.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2276	Ransom.Win32.Tescrypt.exe
2176	Ransom.Win32.Tescrypt.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 2176	2276	Ransom.Win32.Tescrypt.exe	30
PID 2276 wrote to memory of 2176	2276	Ransom.Win32.Tescrypt.exe	30
PID 2276 wrote to memory of 2176	2276	Ransom.Win32.Tescrypt.exe	30
PID 2276 wrote to memory of 2176	2276	Ransom.Win32.Tescrypt.exe	30

C:\Users\Admin\AppData\Local\Temp\Ransom.Win32.Tescrypt.exe
"C:\Users\Admin\AppData\Local\Temp\Ransom.Win32.Tescrypt.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Users\Admin\AppData\Local\Temp\Ransom.Win32.Tescrypt.exe
  C:\Users\Admin\AppData\Local\Temp\Ransom.Win32.Tescrypt.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2176

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

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\Ransom.Win32.Tescrypt.exe

Filesize
68KB

MD5
8dd58a04dd612b151a12237cc1b8f51a

SHA1
0678ee4abb5697ac3b6a7ca26256cfe8108fd63b

SHA256
419fba3da38978b857eddeecee40fe8fcd62503ee5532ceeb836f62ea264c2c5

SHA512
26dc1c8835e47892f4d59cbde5a8b431803e1e36f4377d9a96f54c27f484ccac3fcb77e78b77b708068fda4769f69e0e7cd03281dbe0a8b06a32c98d395ac855

Download Submit
memory/2176-17-0x0000000000030000-0x000000000003E000-memory.dmp

Filesize
56KB

Download
memory/2176-28-0x00000000001F0000-0x000000000020B000-memory.dmp

Filesize
108KB

Download
memory/2176-18-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2176-23-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2176-29-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2276-0-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2276-1-0x0000000000030000-0x000000000003E000-memory.dmp

Filesize
56KB

Download
memory/2276-2-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2276-12-0x00000000001F0000-0x000000000022A000-memory.dmp

Filesize
232KB

Download
memory/2276-15-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download