tofsee | 61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f

General

Target

61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe
Size

296KB
MD5

a45f8ebd25b0e3b38b47b55946f2be0d
SHA1

357a124c0d3c1febbda25cff5ecec3c2f1818ea5
SHA256

61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f
SHA512

10b819067ada2b0f1ce59b75d6f71866677d4677cf3537ed28979d66569f75286862c36cf09df8740cf21fdd548714edac5229888f2774874df818a3f2bae6df
SSDEEP

6144:AMYU+cI16IZX2ZFDDvT8iiX3P2uzbgwu:zYf16iG3EiiXeunn

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

patmushta.info

parubey.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee
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
1756	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\qzeipwkj\ImagePath = "C:\\Windows\\SysWOW64\\qzeipwkj\\jqlchmyf.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe

Deletes itself 1 IoCs

pid	Process
3520	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4152	jqlchmyf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4152 set thread context of 3520	4152	jqlchmyf.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
3612	sc.exe
1224	sc.exe
2172	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 opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4456	5088	WerFault.exe	83
2332	4152	WerFault.exe	95

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	svchost.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	jqlchmyf.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	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.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 23 IoCs

description	pid	Process	procid_target
PID 5088 wrote to memory of 3124	5088	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe	84
PID 5088 wrote to memory of 3124	5088	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe	84
PID 5088 wrote to memory of 3124	5088	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe	84
PID 5088 wrote to memory of 4964	5088	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe	86
PID 5088 wrote to memory of 4964	5088	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe	86
PID 5088 wrote to memory of 4964	5088	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe	86
PID 5088 wrote to memory of 3612	5088	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe	88
PID 5088 wrote to memory of 3612	5088	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe	88
PID 5088 wrote to memory of 3612	5088	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe	88
PID 5088 wrote to memory of 1224	5088	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe	91
PID 5088 wrote to memory of 1224	5088	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe	91
PID 5088 wrote to memory of 1224	5088	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe	91
PID 5088 wrote to memory of 2172	5088	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe	93
PID 5088 wrote to memory of 2172	5088	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe	93
PID 5088 wrote to memory of 2172	5088	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe	93
PID 5088 wrote to memory of 1756	5088	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe	96
PID 5088 wrote to memory of 1756	5088	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe	96
PID 5088 wrote to memory of 1756	5088	61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe	96
PID 4152 wrote to memory of 3520	4152	jqlchmyf.exe	102
PID 4152 wrote to memory of 3520	4152	jqlchmyf.exe	102
PID 4152 wrote to memory of 3520	4152	jqlchmyf.exe	102
PID 4152 wrote to memory of 3520	4152	jqlchmyf.exe	102
PID 4152 wrote to memory of 3520	4152	jqlchmyf.exe	102

C:\Users\Admin\AppData\Local\Temp\61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe
"C:\Users\Admin\AppData\Local\Temp\61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5088
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qzeipwkj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3124
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jqlchmyf.exe" C:\Windows\SysWOW64\qzeipwkj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qzeipwkj binPath= "C:\Windows\SysWOW64\qzeipwkj\jqlchmyf.exe /d\"C:\Users\Admin\AppData\Local\Temp\61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3612
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qzeipwkj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1224
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qzeipwkj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2172
- 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:1756
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 1040
  2⤵
  - Program crash
  PID:4456

C:\Windows\SysWOW64\qzeipwkj\jqlchmyf.exe
C:\Windows\SysWOW64\qzeipwkj\jqlchmyf.exe /d"C:\Users\Admin\AppData\Local\Temp\61bda36a3ecfcd82c3c356293325a3f23657ed11311d231c8b27d37802b2d19f.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4152
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3520
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4152 -s 532
  2⤵
  - Program crash
  PID:2332

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 5088 -ip 5088
1⤵
PID:4900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4152 -ip 4152
1⤵
PID:3524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\jqlchmyf.exe

Filesize
14.3MB

MD5
ee801d8a472ec18a2edeeef5202c4ec5

SHA1
488bdd5100ef8280a5da43873c62c71564290525

SHA256
d48ff938073c74d0cf53a7f69ae671ff5667909442b55d6e824cd6d6aa6e38c8

SHA512
283f9dd212f2a67e77d4f9cc40b6e6e5e6284963ac76890778bab51962ce14f2b9fdaa168a7a23734d49157f5e1b00e731f3801f03b5bf414de0a371460a6b62

Download Submit
memory/3520-13-0x0000000000440000-0x0000000000455000-memory.dmp

Filesize
84KB

Download
memory/3520-16-0x0000000000440000-0x0000000000455000-memory.dmp

Filesize
84KB

Download
memory/3520-15-0x0000000000440000-0x0000000000455000-memory.dmp

Filesize
84KB

Download
memory/4152-10-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/4152-11-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/4152-12-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/4152-18-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/5088-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5088-8-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/5088-7-0x00000000001C0000-0x00000000001CD000-memory.dmp

Filesize
52KB

Download
memory/5088-0-0x00000000001C0000-0x00000000001CD000-memory.dmp

Filesize
52KB

Download
memory/5088-6-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/5088-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5088-1-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads