tofsee | a419803389ae5a08a562449126908d43d14ddff789d13950b3f793051b1a6ef7

General

Target

5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe
Size

10.2MB
MD5

5706f7eb6c5294e58aaa331b43cd5dd3
SHA1

df373d30332a8244f80074284617aaa7444404d4
SHA256

a419803389ae5a08a562449126908d43d14ddff789d13950b3f793051b1a6ef7
SHA512

030b41f592de764eec4031917054986d49e574956ceb1ee40cfda9013f94e06bd7c17df5b9b453167d7b116f72fa89d270c92aa96ee3be7c138a0221acbeb04d
SSDEEP

6144:eJu3szifRNFyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyP:suHf7

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan 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
3132	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\wiktatpl\ImagePath = "C:\\Windows\\SysWOW64\\wiktatpl\\bvxuokuz.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4416	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3472	bvxuokuz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3472 set thread context of 4416	3472	bvxuokuz.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
5032	sc.exe
4916	sc.exe
3520	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

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bvxuokuz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3700 wrote to memory of 2148	3700	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe	87
PID 3700 wrote to memory of 2148	3700	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe	87
PID 3700 wrote to memory of 2148	3700	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe	87
PID 3700 wrote to memory of 2520	3700	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe	89
PID 3700 wrote to memory of 2520	3700	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe	89
PID 3700 wrote to memory of 2520	3700	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe	89
PID 3700 wrote to memory of 5032	3700	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe	91
PID 3700 wrote to memory of 5032	3700	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe	91
PID 3700 wrote to memory of 5032	3700	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe	91
PID 3700 wrote to memory of 4916	3700	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe	93
PID 3700 wrote to memory of 4916	3700	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe	93
PID 3700 wrote to memory of 4916	3700	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe	93
PID 3700 wrote to memory of 3520	3700	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe	95
PID 3700 wrote to memory of 3520	3700	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe	95
PID 3700 wrote to memory of 3520	3700	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe	95
PID 3472 wrote to memory of 4416	3472	bvxuokuz.exe	100
PID 3472 wrote to memory of 4416	3472	bvxuokuz.exe	100
PID 3472 wrote to memory of 4416	3472	bvxuokuz.exe	100
PID 3472 wrote to memory of 4416	3472	bvxuokuz.exe	100
PID 3472 wrote to memory of 4416	3472	bvxuokuz.exe	100
PID 3700 wrote to memory of 3132	3700	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe	101
PID 3700 wrote to memory of 3132	3700	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe	101
PID 3700 wrote to memory of 3132	3700	5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe	101

C:\Users\Admin\AppData\Local\Temp\5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3700
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wiktatpl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2148
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bvxuokuz.exe" C:\Windows\SysWOW64\wiktatpl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2520
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wiktatpl binPath= "C:\Windows\SysWOW64\wiktatpl\bvxuokuz.exe /d\"C:\Users\Admin\AppData\Local\Temp\5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5032
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wiktatpl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4916
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wiktatpl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3520
- 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:3132

C:\Windows\SysWOW64\wiktatpl\bvxuokuz.exe
C:\Windows\SysWOW64\wiktatpl\bvxuokuz.exe /d"C:\Users\Admin\AppData\Local\Temp\5706f7eb6c5294e58aaa331b43cd5dd3_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3472
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4416

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

Replay Monitor

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Downloads

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

Filesize
11.6MB

MD5
9cbe40bd3b3e512be124dc67ecb65e20

SHA1
c507ecc07bece5b684258d8fcc9555cf0ae7bad9

SHA256
322345c5e18e4aa6f485ce7adc248f6f2c506b1d0b7d4fae555e9936869fc368

SHA512
968e7be1da6c0d79916a6e53bc50acc94ec2688b5893c2b266944fa397580e52407871014a05228312c00ecf8e8e82c0017798c6aa58c67d46065f8edc2d7946

Download Submit
memory/3472-7-0x0000000000460000-0x0000000000461000-memory.dmp

Filesize
4KB

Download
memory/3472-10-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/3700-0-0x0000000000460000-0x0000000000461000-memory.dmp

Filesize
4KB

Download
memory/3700-2-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download
memory/3700-1-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/3700-13-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4416-8-0x0000000000860000-0x0000000000875000-memory.dmp

Filesize
84KB

Download
memory/4416-12-0x0000000000860000-0x0000000000875000-memory.dmp

Filesize
84KB

Download
memory/4416-14-0x0000000000860000-0x0000000000875000-memory.dmp

Filesize
84KB

Download
memory/4416-15-0x0000000000860000-0x0000000000875000-memory.dmp

Filesize
84KB

Download
memory/4416-16-0x0000000000860000-0x0000000000875000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads