tofsee | 5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323

General

Target

JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe
Size

238KB
MD5

b2fa4e2d6fa858be14ff3f823b7f76fb
SHA1

608a467bfe20c69e2878c8df74017b6649a965af
SHA256

5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323
SHA512

44a13f9e38f1f54cb7dd1bb428f6a5ef7584a471ed2cf72f68662dcc1af1b1acf5b6711dd0ae465b11a60024055b20353ccd3f6b3389130726917c0877415999
SSDEEP

3072:67QHNeYxb1NIHOQcm01jxD52D87Cg2G+yP70iVggjcGkNIVqI7sxkgaBChMpZa96:fNeWb3u29xD8XGxPl7ITsq7igavwVf

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
5100	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\vbziatzl\ImagePath = "C:\\Windows\\SysWOW64\\vbziatzl\\jcqcuoqd.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_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe

Deletes itself 1 IoCs

pid	Process
2244	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2036	jcqcuoqd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2036 set thread context of 2244	2036	jcqcuoqd.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
2928	sc.exe
4040	sc.exe
4928	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
1632	2036	WerFault.exe	95
1728	3024	WerFault.exe	82

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_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.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	jcqcuoqd.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3024 wrote to memory of 1576	3024	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	83
PID 3024 wrote to memory of 1576	3024	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	83
PID 3024 wrote to memory of 1576	3024	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	83
PID 3024 wrote to memory of 4972	3024	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	85
PID 3024 wrote to memory of 4972	3024	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	85
PID 3024 wrote to memory of 4972	3024	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	85
PID 3024 wrote to memory of 2928	3024	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	87
PID 3024 wrote to memory of 2928	3024	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	87
PID 3024 wrote to memory of 2928	3024	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	87
PID 3024 wrote to memory of 4040	3024	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	90
PID 3024 wrote to memory of 4040	3024	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	90
PID 3024 wrote to memory of 4040	3024	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	90
PID 3024 wrote to memory of 4928	3024	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	93
PID 3024 wrote to memory of 4928	3024	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	93
PID 3024 wrote to memory of 4928	3024	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	93
PID 3024 wrote to memory of 5100	3024	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	96
PID 3024 wrote to memory of 5100	3024	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	96
PID 3024 wrote to memory of 5100	3024	JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe	96
PID 2036 wrote to memory of 2244	2036	jcqcuoqd.exe	101
PID 2036 wrote to memory of 2244	2036	jcqcuoqd.exe	101
PID 2036 wrote to memory of 2244	2036	jcqcuoqd.exe	101
PID 2036 wrote to memory of 2244	2036	jcqcuoqd.exe	101
PID 2036 wrote to memory of 2244	2036	jcqcuoqd.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vbziatzl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1576
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jcqcuoqd.exe" C:\Windows\SysWOW64\vbziatzl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vbziatzl binPath= "C:\Windows\SysWOW64\vbziatzl\jcqcuoqd.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2928
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vbziatzl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4040
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vbziatzl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4928
- 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:5100
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3024 -s 1040
  2⤵
  - Program crash
  PID:1728

C:\Windows\SysWOW64\vbziatzl\jcqcuoqd.exe
C:\Windows\SysWOW64\vbziatzl\jcqcuoqd.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5fe6bb381e5905ea9bd0baf3378a0a569e31b28e8e3919a95faa1c7c1f708323.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2244
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2036 -s 512
  2⤵
  - Program crash
  PID:1632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3024 -ip 3024
1⤵
PID:3252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2036 -ip 2036
1⤵
PID:4964

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\jcqcuoqd.exe

Filesize
12.4MB

MD5
43a41438222dc798d8e27ff04aced1e3

SHA1
996ee4596b626ee596a1c0798dada5b764217e74

SHA256
662d66e885d4ca92ce44a74f67066fbf1c28251eed1b4ae5f32275d0fb5e2262

SHA512
243243f2b2561d07e3823fdbd8423166ef891f7673a217135432ed9b1da7883d7def05cfdb8ac2b31e6a272bbd312e2a169dd8d90388e9d9793c2b1761681985

Download Submit
memory/2036-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2036-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2036-8-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2036-7-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2244-12-0x0000000000450000-0x0000000000465000-memory.dmp

Filesize
84KB

Download
memory/2244-9-0x0000000000450000-0x0000000000465000-memory.dmp

Filesize
84KB

Download
memory/2244-19-0x0000000000450000-0x0000000000465000-memory.dmp

Filesize
84KB

Download
memory/2244-20-0x0000000000450000-0x0000000000465000-memory.dmp

Filesize
84KB

Download
memory/2244-21-0x0000000000450000-0x0000000000465000-memory.dmp

Filesize
84KB

Download
memory/3024-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3024-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3024-1-0x0000000000700000-0x0000000000713000-memory.dmp

Filesize
76KB

Download
memory/3024-16-0x00000000006F0000-0x00000000006FD000-memory.dmp

Filesize
52KB

Download
memory/3024-0-0x00000000006F0000-0x00000000006FD000-memory.dmp

Filesize
52KB

Download
memory/3024-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3024-17-0x0000000000700000-0x0000000000713000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads