tofsee | 29b0f91a35ae86daabb6e62bde864cf514549d1d3e9f0fa453521fccd389d51e

General

Target

JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe
Size

13.5MB
MD5

46912015f4e217c84f81982305c8c6d5
SHA1

ba7ccd3f4668126eed2a609eb6ac489e9893b78a
SHA256

29b0f91a35ae86daabb6e62bde864cf514549d1d3e9f0fa453521fccd389d51e
SHA512

83900686d98969d7a00a1b78a3e1f7aeba2b95d8f931f412787a03fd32d87dfbfeb1d0506b2a2190254b0fa88e235264e58374b353d0a5c68f0c299f7782b17e
SSDEEP

49152:fyzapZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZx:fC

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.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
2600	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\jttswwtf\ImagePath = "C:\\Windows\\SysWOW64\\jttswwtf\\kdrdvpre.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	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe

Deletes itself 1 IoCs

pid	Process
1880	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3656	kdrdvpre.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3656 set thread context of 1880	3656	kdrdvpre.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
4408	sc.exe
2424	sc.exe
1084	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
8	232	WerFault.exe	82
3404	3656	WerFault.exe	93

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	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kdrdvpre.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 232 wrote to memory of 1264	232	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	83
PID 232 wrote to memory of 1264	232	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	83
PID 232 wrote to memory of 1264	232	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	83
PID 232 wrote to memory of 4432	232	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	85
PID 232 wrote to memory of 4432	232	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	85
PID 232 wrote to memory of 4432	232	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	85
PID 232 wrote to memory of 4408	232	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	87
PID 232 wrote to memory of 4408	232	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	87
PID 232 wrote to memory of 4408	232	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	87
PID 232 wrote to memory of 2424	232	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	89
PID 232 wrote to memory of 2424	232	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	89
PID 232 wrote to memory of 2424	232	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	89
PID 232 wrote to memory of 1084	232	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	91
PID 232 wrote to memory of 1084	232	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	91
PID 232 wrote to memory of 1084	232	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	91
PID 232 wrote to memory of 2600	232	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	94
PID 232 wrote to memory of 2600	232	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	94
PID 232 wrote to memory of 2600	232	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	94
PID 3656 wrote to memory of 1880	3656	kdrdvpre.exe	100
PID 3656 wrote to memory of 1880	3656	kdrdvpre.exe	100
PID 3656 wrote to memory of 1880	3656	kdrdvpre.exe	100
PID 3656 wrote to memory of 1880	3656	kdrdvpre.exe	100
PID 3656 wrote to memory of 1880	3656	kdrdvpre.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:232
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jttswwtf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1264
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kdrdvpre.exe" C:\Windows\SysWOW64\jttswwtf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4432
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jttswwtf binPath= "C:\Windows\SysWOW64\jttswwtf\kdrdvpre.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4408
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jttswwtf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2424
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jttswwtf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1084
- 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:2600
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 232 -s 1040
  2⤵
  - Program crash
  PID:8

C:\Windows\SysWOW64\jttswwtf\kdrdvpre.exe
C:\Windows\SysWOW64\jttswwtf\kdrdvpre.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3656
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1880
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3656 -s 532
  2⤵
  - Program crash
  PID:3404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 232 -ip 232
1⤵
PID:3308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3656 -ip 3656
1⤵
PID:3252

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\kdrdvpre.exe

Filesize
13.8MB

MD5
a47892cdad6c0390283df7552c338ad7

SHA1
e44e629339cf67c159343a923e8e173c8e5d14de

SHA256
c087debbc76b92ad32d5954cf40b1f4620b7eba48a32d6b25b860b331be7fa7b

SHA512
f9749ceb646cf7e8d980605efef6334211edc741ae74cfc275addc2ef47c0b56db4cc3cf320a2c084725997be0ba0e431e159a4904853ca0afb32ab89e3e0646

Download Submit
memory/232-1-0x0000000001850000-0x0000000001950000-memory.dmp

Filesize
1024KB

Download
memory/232-2-0x0000000003400000-0x0000000003413000-memory.dmp

Filesize
76KB

Download
memory/232-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/232-8-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/232-9-0x0000000003400000-0x0000000003413000-memory.dmp

Filesize
76KB

Download
memory/232-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1880-11-0x0000000000600000-0x0000000000615000-memory.dmp

Filesize
84KB

Download
memory/1880-13-0x0000000000600000-0x0000000000615000-memory.dmp

Filesize
84KB

Download
memory/1880-15-0x0000000000600000-0x0000000000615000-memory.dmp

Filesize
84KB

Download
memory/3656-14-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/3656-17-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads