tofsee | af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9

General

Target

JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe
Size

285KB
MD5

bcc4ff63af0ec0bcaa60c0b61e9ab907
SHA1

19fcbbe86401616de1f67d98c6b2408b2ab59c44
SHA256

af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9
SHA512

73c03a33b006ea88790ef783a5c2506112a305e001a39e32dc4843713d1f11b06aa79a7e861f1742587f21da32b265de256b59bee5702014b4527bd08767ec36
SSDEEP

6144:aQ+PY2mV3OB8uzbgwu6L7ITsqSigaTwVf:aQ+PY2aU8unnn7s

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
2020	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\rwwmfkll\ImagePath = "C:\\Windows\\SysWOW64\\rwwmfkll\\xktqrwiv.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe

Deletes itself 1 IoCs

pid	Process
448	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4724	xktqrwiv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4724 set thread context of 448	4724	xktqrwiv.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
2952	sc.exe
3964	sc.exe
1284	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
2480	3088	WerFault.exe	82
1848	4724	WerFault.exe	94

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	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.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	xktqrwiv.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	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 3088 wrote to memory of 5044	3088	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	83
PID 3088 wrote to memory of 5044	3088	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	83
PID 3088 wrote to memory of 5044	3088	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	83
PID 3088 wrote to memory of 2628	3088	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	85
PID 3088 wrote to memory of 2628	3088	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	85
PID 3088 wrote to memory of 2628	3088	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	85
PID 3088 wrote to memory of 2952	3088	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	87
PID 3088 wrote to memory of 2952	3088	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	87
PID 3088 wrote to memory of 2952	3088	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	87
PID 3088 wrote to memory of 3964	3088	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	89
PID 3088 wrote to memory of 3964	3088	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	89
PID 3088 wrote to memory of 3964	3088	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	89
PID 3088 wrote to memory of 1284	3088	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	91
PID 3088 wrote to memory of 1284	3088	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	91
PID 3088 wrote to memory of 1284	3088	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	91
PID 3088 wrote to memory of 2020	3088	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	95
PID 3088 wrote to memory of 2020	3088	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	95
PID 3088 wrote to memory of 2020	3088	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	95
PID 4724 wrote to memory of 448	4724	xktqrwiv.exe	101
PID 4724 wrote to memory of 448	4724	xktqrwiv.exe	101
PID 4724 wrote to memory of 448	4724	xktqrwiv.exe	101
PID 4724 wrote to memory of 448	4724	xktqrwiv.exe	101
PID 4724 wrote to memory of 448	4724	xktqrwiv.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3088
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rwwmfkll\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5044
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xktqrwiv.exe" C:\Windows\SysWOW64\rwwmfkll\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2628
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rwwmfkll binPath= "C:\Windows\SysWOW64\rwwmfkll\xktqrwiv.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2952
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rwwmfkll "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rwwmfkll
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1284
- 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:2020
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 664
  2⤵
  - Program crash
  PID:2480

C:\Windows\SysWOW64\rwwmfkll\xktqrwiv.exe
C:\Windows\SysWOW64\rwwmfkll\xktqrwiv.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4724
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:448
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 520
  2⤵
  - Program crash
  PID:1848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3088 -ip 3088
1⤵
PID:4820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4724 -ip 4724
1⤵
PID:4992

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\xktqrwiv.exe

Filesize
10.2MB

MD5
e9d6c145799c359c497053ee31a25425

SHA1
2161957e904eaf78ac4eed1d0b13f706241de093

SHA256
52f16ff03940efaeb00b09c14bc9b0994a0d381dba6495c31bd67718df2b8fdc

SHA512
ceebd5085a7d9f3cc99e6f2ba79b17c23d2af49bca59416911acacf450ffe4556744e21c21bc530878644fcd3ba6d33b5f06d18b01a74cda941d435d3fa04fe3

Download Submit
memory/448-9-0x00000000004F0000-0x0000000000505000-memory.dmp

Filesize
84KB

Download
memory/448-17-0x00000000004F0000-0x0000000000505000-memory.dmp

Filesize
84KB

Download
memory/448-16-0x00000000004F0000-0x0000000000505000-memory.dmp

Filesize
84KB

Download
memory/3088-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3088-12-0x0000000000700000-0x000000000070D000-memory.dmp

Filesize
52KB

Download
memory/3088-0-0x0000000000700000-0x000000000070D000-memory.dmp

Filesize
52KB

Download
memory/3088-13-0x0000000000710000-0x0000000000723000-memory.dmp

Filesize
76KB

Download
memory/3088-11-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3088-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3088-1-0x0000000000710000-0x0000000000723000-memory.dmp

Filesize
76KB

Download
memory/4724-7-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4724-8-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4724-6-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4724-15-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads