tofsee | 198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12

General

Target

JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe
Size

285KB
MD5

7054f61d1e5508cd336cc4651f736acf
SHA1

3e21556cb84c067fe7c79abe3ef4bbd9fea335d0
SHA256

198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12
SHA512

42eeefacf1854770ddc4f76292c233009e15cc0d42d984e4f1bc7fe763a790b8b2483a8c6fbefdfab49d957c453bf55d2ddf080533b8a01cb68ba8050545a1c1
SSDEEP

6144:2KFbjVUyrQk3RMPrCpcaJlkHuzbgwu6L7ITsqSigaTwVf:xbjKQB3SMaHunnn7s

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
1992	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\oiuchcy\ImagePath = "C:\\Windows\\SysWOW64\\oiuchcy\\exiyjgzs.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_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe

Deletes itself 1 IoCs

pid	Process
4816	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1824	exiyjgzs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1824 set thread context of 4816	1824	exiyjgzs.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
2908	sc.exe
3028	sc.exe
3348	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
1476	4388	WerFault.exe	84
3720	1824	WerFault.exe	96

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_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.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
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	exiyjgzs.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4388 wrote to memory of 3728	4388	JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe	85
PID 4388 wrote to memory of 3728	4388	JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe	85
PID 4388 wrote to memory of 3728	4388	JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe	85
PID 4388 wrote to memory of 4744	4388	JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe	87
PID 4388 wrote to memory of 4744	4388	JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe	87
PID 4388 wrote to memory of 4744	4388	JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe	87
PID 4388 wrote to memory of 2908	4388	JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe	89
PID 4388 wrote to memory of 2908	4388	JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe	89
PID 4388 wrote to memory of 2908	4388	JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe	89
PID 4388 wrote to memory of 3028	4388	JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe	91
PID 4388 wrote to memory of 3028	4388	JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe	91
PID 4388 wrote to memory of 3028	4388	JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe	91
PID 4388 wrote to memory of 3348	4388	JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe	94
PID 4388 wrote to memory of 3348	4388	JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe	94
PID 4388 wrote to memory of 3348	4388	JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe	94
PID 4388 wrote to memory of 1992	4388	JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe	97
PID 4388 wrote to memory of 1992	4388	JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe	97
PID 4388 wrote to memory of 1992	4388	JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe	97
PID 1824 wrote to memory of 4816	1824	exiyjgzs.exe	103
PID 1824 wrote to memory of 4816	1824	exiyjgzs.exe	103
PID 1824 wrote to memory of 4816	1824	exiyjgzs.exe	103
PID 1824 wrote to memory of 4816	1824	exiyjgzs.exe	103
PID 1824 wrote to memory of 4816	1824	exiyjgzs.exe	103

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4388
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oiuchcy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3728
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\exiyjgzs.exe" C:\Windows\SysWOW64\oiuchcy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create oiuchcy binPath= "C:\Windows\SysWOW64\oiuchcy\exiyjgzs.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description oiuchcy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3028
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start oiuchcy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3348
- 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:1992
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4388 -s 1212
  2⤵
  - Program crash
  PID:1476

C:\Windows\SysWOW64\oiuchcy\exiyjgzs.exe
C:\Windows\SysWOW64\oiuchcy\exiyjgzs.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_198cac834f2035248a9e788928666e62789cc92e396c8fe57efb539adce8db12.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1824
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4816
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1824 -s 512
  2⤵
  - Program crash
  PID:3720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4388 -ip 4388
1⤵
PID:432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1824 -ip 1824
1⤵
PID:4952

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\exiyjgzs.exe

Filesize
11.7MB

MD5
80eadff6a83ce0a5577add02e662a230

SHA1
440d01292baa649befa18a1292f5933981dd1c69

SHA256
3b2932f30c79e8b5950e0a67fdadf26c6a31ad100ad34240fa91c34114dd3193

SHA512
13ccc886c18d7a00cc0ef08905c260e27ce84a5ab8d1d0b86a67c2b6d21dc5560c8acbe3c076bb5c31fbde9efcc37c157d5139057107872782fdb84717b06d3b

Download Submit
memory/1824-8-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1824-16-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1824-6-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1824-7-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4388-12-0x0000000002060000-0x000000000206D000-memory.dmp

Filesize
52KB

Download
memory/4388-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4388-13-0x0000000002080000-0x0000000002093000-memory.dmp

Filesize
76KB

Download
memory/4388-0-0x0000000002060000-0x000000000206D000-memory.dmp

Filesize
52KB

Download
memory/4388-11-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4388-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4388-1-0x0000000002080000-0x0000000002093000-memory.dmp

Filesize
76KB

Download
memory/4816-9-0x0000000000700000-0x0000000000715000-memory.dmp

Filesize
84KB

Download
memory/4816-17-0x0000000000700000-0x0000000000715000-memory.dmp

Filesize
84KB

Download
memory/4816-18-0x0000000000700000-0x0000000000715000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads