tofsee | 366823c206ec42f3724746803d925618cad8b3aa43c0bb73169ef157cb68badd

General

Target

3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe
Size

10.5MB
MD5

3c5fcc8c664439dab4697cc1f81e8298
SHA1

ff4ca1aad3e2896d90d6dffd9fa5b054698656de
SHA256

366823c206ec42f3724746803d925618cad8b3aa43c0bb73169ef157cb68badd
SHA512

3772705430ba459d06eb1b633fe4ec306076c521f6eac812174ef07aaa308a8ea4996f2a0b9412800348a7d39a21feccbad780da89a553da163565c919931397
SSDEEP

49152:iCs+vZDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDj:LJ

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
3228	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\rqqwmluo\ImagePath = "C:\\Windows\\SysWOW64\\rqqwmluo\\uwpahpdt.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4064	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3160	uwpahpdt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3160 set thread context of 4064	3160	uwpahpdt.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
1336	sc.exe
4148	sc.exe
3608	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

Program crash 4 IoCs

pid	pid_target	Process	procid_target
4968	3160	WerFault.exe	96
3248	3664	WerFault.exe	83
3416	3160	WerFault.exe	96
4712	3160	WerFault.exe	96

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	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uwpahpdt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3664 wrote to memory of 592	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	86
PID 3664 wrote to memory of 592	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	86
PID 3664 wrote to memory of 592	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	86
PID 3664 wrote to memory of 536	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	88
PID 3664 wrote to memory of 536	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	88
PID 3664 wrote to memory of 536	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	88
PID 3664 wrote to memory of 1336	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	90
PID 3664 wrote to memory of 1336	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	90
PID 3664 wrote to memory of 1336	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	90
PID 3664 wrote to memory of 4148	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	92
PID 3664 wrote to memory of 4148	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	92
PID 3664 wrote to memory of 4148	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	92
PID 3664 wrote to memory of 3608	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	94
PID 3664 wrote to memory of 3608	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	94
PID 3664 wrote to memory of 3608	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	94
PID 3664 wrote to memory of 3228	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	100
PID 3664 wrote to memory of 3228	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	100
PID 3664 wrote to memory of 3228	3664	3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe	100
PID 3160 wrote to memory of 4064	3160	uwpahpdt.exe	103
PID 3160 wrote to memory of 4064	3160	uwpahpdt.exe	103
PID 3160 wrote to memory of 4064	3160	uwpahpdt.exe	103
PID 3160 wrote to memory of 4064	3160	uwpahpdt.exe	103
PID 3160 wrote to memory of 4064	3160	uwpahpdt.exe	103

C:\Users\Admin\AppData\Local\Temp\3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3664
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rqqwmluo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:592
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uwpahpdt.exe" C:\Windows\SysWOW64\rqqwmluo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rqqwmluo binPath= "C:\Windows\SysWOW64\rqqwmluo\uwpahpdt.exe /d\"C:\Users\Admin\AppData\Local\Temp\3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1336
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rqqwmluo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4148
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rqqwmluo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3608
- 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:3228
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3664 -s 1164
  2⤵
  - Program crash
  PID:3248

C:\Windows\SysWOW64\rqqwmluo\uwpahpdt.exe
C:\Windows\SysWOW64\rqqwmluo\uwpahpdt.exe /d"C:\Users\Admin\AppData\Local\Temp\3c5fcc8c664439dab4697cc1f81e8298_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3160
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3160 -s 520
  2⤵
  - Program crash
  PID:4968
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4064
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3160 -s 528
  2⤵
  - Program crash
  PID:3416
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3160 -s 544
  2⤵
  - Program crash
  PID:4712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3160 -ip 3160
1⤵
PID:2132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3664 -ip 3664
1⤵
PID:2720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3160 -ip 3160
1⤵
PID:3448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3160 -ip 3160
1⤵
PID:3908

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\uwpahpdt.exe

Filesize
13.0MB

MD5
9efebb31c99c178ba84e48857d425d26

SHA1
7272c3d4885a959b9e0747efffc305df38e4e2de

SHA256
9f8c6db3cefad07e75126c2258b318753c310a488cdf0660a51765807b8e5824

SHA512
f2895550f69862ac5cd653a429755f357c00ca91d70acdec2f10147199c77518d3c88318d39f6ba842bc2ca78e36dabd37c697d047f548915e0e020aa17f9684

Download Submit
memory/3160-12-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/3160-11-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/3160-23-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/3160-10-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/3160-8-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/3664-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3664-16-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/3664-0-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/3664-3-0x0000000002060000-0x0000000002073000-memory.dmp

Filesize
76KB

Download
memory/3664-2-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/3664-21-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3664-20-0x0000000002060000-0x0000000002073000-memory.dmp

Filesize
76KB

Download
memory/3664-19-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/4064-26-0x0000000000D90000-0x0000000000DA5000-memory.dmp

Filesize
84KB

Download
memory/4064-17-0x0000000000D90000-0x0000000000DA5000-memory.dmp

Filesize
84KB

Download
memory/4064-24-0x0000000000D90000-0x0000000000DA5000-memory.dmp

Filesize
84KB

Download
memory/4064-25-0x0000000000D90000-0x0000000000DA5000-memory.dmp

Filesize
84KB

Download
memory/4064-13-0x0000000000D90000-0x0000000000DA5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads