tofsee | 15b861ffcc39f198fa8ac6ad669c42761d655e8033c73ebd6a33c5b5d5d82979

Analysis

max time kernel
146s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-12-2024 23:43

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General

Target

2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe
Size

13.8MB
MD5

ed275a5b6dba1ca2b37c7eef0adbf16b
SHA1

49e4329d3162683d2800dea4fd59d0bc6f3acc25
SHA256

15b861ffcc39f198fa8ac6ad669c42761d655e8033c73ebd6a33c5b5d5d82979
SHA512

d00139195a5633db1e818a2a749ca1cbb8e7dfd6cdc1c6a84e8ee1aede9f1a0dccd61394ee6ec397988a95243dc6db74ad74ff2394acae085165b05e067e96a8
SSDEEP

24576:YXzqpE5DpEMMMMMMMb4zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzn:YXPVpEMMMMMMMb

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.ru

Signatures

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\oqijfrne = "0"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2740	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\oqijfrne\ImagePath = "C:\\Windows\\SysWOW64\\oqijfrne\\kwxrmijg.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2788	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2820	kwxrmijg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2820 set thread context of 2788	2820	kwxrmijg.exe	43

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2700	sc.exe
888	sc.exe
2836	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 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	kwxrmijg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 632 wrote to memory of 3044	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	30
PID 632 wrote to memory of 3044	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	30
PID 632 wrote to memory of 3044	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	30
PID 632 wrote to memory of 3044	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	30
PID 632 wrote to memory of 2328	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	32
PID 632 wrote to memory of 2328	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	32
PID 632 wrote to memory of 2328	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	32
PID 632 wrote to memory of 2328	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	32
PID 632 wrote to memory of 2700	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	34
PID 632 wrote to memory of 2700	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	34
PID 632 wrote to memory of 2700	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	34
PID 632 wrote to memory of 2700	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	34
PID 632 wrote to memory of 888	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	36
PID 632 wrote to memory of 888	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	36
PID 632 wrote to memory of 888	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	36
PID 632 wrote to memory of 888	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	36
PID 632 wrote to memory of 2836	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	38
PID 632 wrote to memory of 2836	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	38
PID 632 wrote to memory of 2836	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	38
PID 632 wrote to memory of 2836	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	38
PID 632 wrote to memory of 2740	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	41
PID 632 wrote to memory of 2740	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	41
PID 632 wrote to memory of 2740	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	41
PID 632 wrote to memory of 2740	632	2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe	41
PID 2820 wrote to memory of 2788	2820	kwxrmijg.exe	43
PID 2820 wrote to memory of 2788	2820	kwxrmijg.exe	43
PID 2820 wrote to memory of 2788	2820	kwxrmijg.exe	43
PID 2820 wrote to memory of 2788	2820	kwxrmijg.exe	43
PID 2820 wrote to memory of 2788	2820	kwxrmijg.exe	43
PID 2820 wrote to memory of 2788	2820	kwxrmijg.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:632
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oqijfrne\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3044
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kwxrmijg.exe" C:\Windows\SysWOW64\oqijfrne\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2328
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create oqijfrne binPath= "C:\Windows\SysWOW64\oqijfrne\kwxrmijg.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2700
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description oqijfrne "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start oqijfrne
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2740

C:\Windows\SysWOW64\oqijfrne\kwxrmijg.exe
C:\Windows\SysWOW64\oqijfrne\kwxrmijg.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-01_ed275a5b6dba1ca2b37c7eef0adbf16b_karagany_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

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\kwxrmijg.exe

Filesize
10.3MB

MD5
9b922edbb4f455b1e17055048f945897

SHA1
4ea8e2808cb41ccb41e6f7734f0be2d35cbcdf41

SHA256
5d1933f9d242b3251639861727cf393e599ebbee6dcb925c87b958e6c4df4201

SHA512
f58de9cc1167f4af2648ffab0f10791aee86644b7253d0d77f3d079a347af1506542e8d83c734332a604a918d7852ad0923dd8292a900b35d26a036f923f5249

Download Submit
memory/632-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/632-3-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/632-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/632-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/632-8-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2788-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2788-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads