tofsee | f59e5b7c4dcddee2305fbdc248f4f263c5c46cd3956af2c9d86d73052707e59b

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
26-11-2024 21:50

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

uvnllfxk.exe
Size

34.1MB
MD5

2f681fe6591187ce3aaf014abc7f00b3
SHA1

3d69cf7428fc10ee601a9011ccee1719275987d9
SHA256

259dea5a8a0bf108c09339fea8da0c74fe0959175c56bb8c8d054c586a7128c3
SHA512

eb9ad3e9afe22e2004f6a3dc6abf267dcf84fbc2f7984e066435a0ec619af2361c92a732fa3f5213639fe4230808107d0b7b686feb4bd30cccc46ae213a380ac
SSDEEP

12288:KisnNo6S1SIS1SIS1SIS1SIS1SIS1SIS1SIS1SIS1SIS1SIS1SIS1SIS1SIS1SIu:V

Score

10^/10

tofsee discovery trojan

Malware Config

Extracted

Family

tofsee

94.242.250.149

91.218.38.245

188.165.132.183

rgtryhbgddtyh.biz

wertdghbyrukl.ch

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Deletes itself 1 IoCs

pid	Process
2588	cmd.exe

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	uvnllfxk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
2556	uvnllfxk.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2556 wrote to memory of 2588	2556	uvnllfxk.exe	31
PID 2556 wrote to memory of 2588	2556	uvnllfxk.exe	31
PID 2556 wrote to memory of 2588	2556	uvnllfxk.exe	31
PID 2556 wrote to memory of 2588	2556	uvnllfxk.exe	31

C:\Users\Admin\AppData\Local\Temp\uvnllfxk.exe
"C:\Users\Admin\AppData\Local\Temp\uvnllfxk.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2556
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\6373.bat" "
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2588

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

C:\Users\Admin\AppData\Local\Temp\6373.bat

Filesize
190B

MD5
9a9e08671bcb7fe50ca3756c9cb083d0

SHA1
96fa3f6d106f6aa222132968d19de2683d8e1bf8

SHA256
12a4d1d4eb3740fbe58b0a8b248f251f3d17155dce447dc9bdddefec8a68dbac

SHA512
fa9c65a0799087294a304b12729c4a9d5c83758b9396febbad64b4c214404ea8a3c063aa2c3c04c56b1d18ba289cb165ff336b6c7667847d602c7365fd16d995

Download Submit
memory/2556-4-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2556-0-0x0000000000240000-0x0000000000252000-memory.dmp

Filesize
72KB

Download
memory/2556-12-0x0000000000240000-0x0000000000252000-memory.dmp

Filesize
72KB

Download