tofsee | 27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc

General

Target

JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe
Size

11.6MB
MD5

cecab87eece6151682a5dffe04831bb6
SHA1

e3d6a4c3d0f25f63abf5aa5c906da1b681462714
SHA256

27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc
SHA512

1d39a758f9415b493fee4bc0921bfa627d2939d21386a7cd3b9b8f216d75e5025a5f3ff6414b6bfaf2a8acac817cf42a77005677e99ff10094572318a4933ebd
SSDEEP

3072:8CWKsDRr8015LRYiiU/WCMecR3MTjzTjzTjzTjzTjzTjzTjzTjzTjzTjzTjzTjzj:8Ust8015p/WLD

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
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
1632	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\ixmccmxv\ImagePath = "C:\\Windows\\SysWOW64\\ixmccmxv\\iccteneg.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe

Deletes itself 1 IoCs

pid	Process
208	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5084	iccteneg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5084 set thread context of 208	5084	iccteneg.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
3020	sc.exe
4952	sc.exe
4876	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
4888	2328	WerFault.exe	83
5108	5084	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	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	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iccteneg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 1168	2328	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe	84
PID 2328 wrote to memory of 1168	2328	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe	84
PID 2328 wrote to memory of 1168	2328	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe	84
PID 2328 wrote to memory of 3716	2328	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe	86
PID 2328 wrote to memory of 3716	2328	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe	86
PID 2328 wrote to memory of 3716	2328	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe	86
PID 2328 wrote to memory of 4876	2328	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe	89
PID 2328 wrote to memory of 4876	2328	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe	89
PID 2328 wrote to memory of 4876	2328	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe	89
PID 2328 wrote to memory of 3020	2328	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe	91
PID 2328 wrote to memory of 3020	2328	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe	91
PID 2328 wrote to memory of 3020	2328	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe	91
PID 2328 wrote to memory of 4952	2328	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe	93
PID 2328 wrote to memory of 4952	2328	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe	93
PID 2328 wrote to memory of 4952	2328	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe	93
PID 2328 wrote to memory of 1632	2328	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe	96
PID 2328 wrote to memory of 1632	2328	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe	96
PID 2328 wrote to memory of 1632	2328	JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe	96
PID 5084 wrote to memory of 208	5084	iccteneg.exe	102
PID 5084 wrote to memory of 208	5084	iccteneg.exe	102
PID 5084 wrote to memory of 208	5084	iccteneg.exe	102
PID 5084 wrote to memory of 208	5084	iccteneg.exe	102
PID 5084 wrote to memory of 208	5084	iccteneg.exe	102

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ixmccmxv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1168
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iccteneg.exe" C:\Windows\SysWOW64\ixmccmxv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ixmccmxv binPath= "C:\Windows\SysWOW64\ixmccmxv\iccteneg.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4876
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ixmccmxv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3020
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ixmccmxv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4952
- 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:1632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2328 -s 600
  2⤵
  - Program crash
  PID:4888

C:\Windows\SysWOW64\ixmccmxv\iccteneg.exe
C:\Windows\SysWOW64\ixmccmxv\iccteneg.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27a880b8a04d59fa74e9ca0c7db57718599f1efca0c593739c12cb1fad9040dc.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5084
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:208
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5084 -s 512
  2⤵
  - Program crash
  PID:5108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2328 -ip 2328
1⤵
PID:3880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 5084 -ip 5084
1⤵
PID:4792

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\iccteneg.exe

Filesize
13.8MB

MD5
303b7f06d98f24362b9960fa16e79450

SHA1
5c489b5c72e21618d3d8af9ab7fc4a6a8d29487e

SHA256
087d3645316ed8a9a51e29db7f9a0a0bdb3166e3fc10ae90ce38591c452b6abf

SHA512
56ae761597d37fd4501b661f4a9dea579ab881c8495c92ba9c356ea9b9bb965cfa711fb8f8c146944610c592c1c98be7170da6b7cabd9e668fb1907c2849a310

Download Submit
memory/208-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/208-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/208-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2328-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2328-2-0x0000000000660000-0x0000000000673000-memory.dmp

Filesize
76KB

Download
memory/2328-7-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2328-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2328-8-0x0000000000660000-0x0000000000673000-memory.dmp

Filesize
76KB

Download
memory/2328-1-0x00000000006A0000-0x00000000007A0000-memory.dmp

Filesize
1024KB

Download
memory/5084-12-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/5084-13-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/5084-11-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/5084-18-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads