tofsee | 82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721

General

Target

JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe
Size

243KB
MD5

0fba569148e3b4758882dca911ad7fa8
SHA1

09c8755dfe3f733d5deaafe60ad92b47907f7d9c
SHA256

82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721
SHA512

4af517ba9d0b30fe49bbcc69adc71357f2c19b48870366a97f8c1a19627ecc811233cac98395a16694cbc2409f1e85d921e14775507a42c36d491013faca681b
SSDEEP

6144:DQZQphhKlXyYNadG6717PUJN5xmCos7SmQ751CetXH:sZDXyYNaT7cHLosSlh

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.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
532	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\efecrhpa\ImagePath = "C:\\Windows\\SysWOW64\\efecrhpa\\xniuoaew.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe

Deletes itself 1 IoCs

pid	Process
4632	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4936	xniuoaew.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4936 set thread context of 4632	4936	xniuoaew.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
2368	sc.exe
940	sc.exe
380	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
3268	2128	WerFault.exe	82
3456	4936	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xniuoaew.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 3896	2128	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	83
PID 2128 wrote to memory of 3896	2128	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	83
PID 2128 wrote to memory of 3896	2128	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	83
PID 2128 wrote to memory of 184	2128	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	85
PID 2128 wrote to memory of 184	2128	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	85
PID 2128 wrote to memory of 184	2128	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	85
PID 2128 wrote to memory of 2368	2128	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	87
PID 2128 wrote to memory of 2368	2128	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	87
PID 2128 wrote to memory of 2368	2128	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	87
PID 2128 wrote to memory of 940	2128	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	89
PID 2128 wrote to memory of 940	2128	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	89
PID 2128 wrote to memory of 940	2128	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	89
PID 2128 wrote to memory of 380	2128	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	91
PID 2128 wrote to memory of 380	2128	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	91
PID 2128 wrote to memory of 380	2128	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	91
PID 2128 wrote to memory of 532	2128	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	94
PID 2128 wrote to memory of 532	2128	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	94
PID 2128 wrote to memory of 532	2128	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	94
PID 4936 wrote to memory of 4632	4936	xniuoaew.exe	100
PID 4936 wrote to memory of 4632	4936	xniuoaew.exe	100
PID 4936 wrote to memory of 4632	4936	xniuoaew.exe	100
PID 4936 wrote to memory of 4632	4936	xniuoaew.exe	100
PID 4936 wrote to memory of 4632	4936	xniuoaew.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\efecrhpa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3896
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xniuoaew.exe" C:\Windows\SysWOW64\efecrhpa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:184
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create efecrhpa binPath= "C:\Windows\SysWOW64\efecrhpa\xniuoaew.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2368
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description efecrhpa "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:940
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start efecrhpa
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:380
- 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:532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2128 -s 1220
  2⤵
  - Program crash
  PID:3268

C:\Windows\SysWOW64\efecrhpa\xniuoaew.exe
C:\Windows\SysWOW64\efecrhpa\xniuoaew.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 512
  2⤵
  - Program crash
  PID:3456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2128 -ip 2128
1⤵
PID:4392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4936 -ip 4936
1⤵
PID:3608

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\xniuoaew.exe

Filesize
13.1MB

MD5
5ed62e7155892cfdf673c01cc5853d09

SHA1
acea89fb16aee399155887093cff1f1b35180203

SHA256
ad2a67d5770970affd6dc2631af964039da0324b3a15d3239043680aee479038

SHA512
0c86b632bbc62ba124d97ce7d126cf32885cf81da38e1e6539396c89e2b36015c320eca21f7461f31c8106b514bf5eb51730395f72ac47ba0ce310ec53378119

Download Submit
memory/2128-8-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2128-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2128-2-0x0000000000880000-0x0000000000893000-memory.dmp

Filesize
76KB

Download
memory/2128-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2128-9-0x0000000000880000-0x0000000000893000-memory.dmp

Filesize
76KB

Download
memory/2128-1-0x0000000000680000-0x0000000000780000-memory.dmp

Filesize
1024KB

Download
memory/4632-14-0x0000000000140000-0x0000000000155000-memory.dmp

Filesize
84KB

Download
memory/4632-16-0x0000000000140000-0x0000000000155000-memory.dmp

Filesize
84KB

Download
memory/4632-17-0x0000000000140000-0x0000000000155000-memory.dmp

Filesize
84KB

Download
memory/4936-11-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4936-12-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4936-13-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4936-19-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads