tofsee | 01ae748b435caebaa1cb01facf9bd72ee0218442abd27ba4f568b1c733b7ff8c

General

Target

a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe
Size

11.1MB
MD5

a7c01b6159e5aa569cc67d4ad0a361cd
SHA1

38621e164a7a14acc830852ea0fc8a20d2b51d17
SHA256

01ae748b435caebaa1cb01facf9bd72ee0218442abd27ba4f568b1c733b7ff8c
SHA512

542d8eaa20236659432a9b9168a905ed6551bda86e0cd1ef19d7b6e5498437c1bfb1b74d73946f4599373a662d2f3e9c5829b93f986f4acd2e202bfa559a24fc
SSDEEP

196608:vYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYo:vYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYo

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
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
3920	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\qgvdjah\ImagePath = "C:\\Windows\\SysWOW64\\qgvdjah\\iupmtssg.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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2516	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
396	iupmtssg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 396 set thread context of 2516	396	iupmtssg.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
2224	sc.exe
1144	sc.exe
2892	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
3868	3056	WerFault.exe	83
1256	396	WerFault.exe	101

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	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iupmtssg.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	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 3056 wrote to memory of 4520	3056	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	87
PID 3056 wrote to memory of 4520	3056	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	87
PID 3056 wrote to memory of 4520	3056	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	87
PID 3056 wrote to memory of 2292	3056	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	91
PID 3056 wrote to memory of 2292	3056	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	91
PID 3056 wrote to memory of 2292	3056	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	91
PID 3056 wrote to memory of 2224	3056	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	93
PID 3056 wrote to memory of 2224	3056	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	93
PID 3056 wrote to memory of 2224	3056	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	93
PID 3056 wrote to memory of 1144	3056	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	97
PID 3056 wrote to memory of 1144	3056	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	97
PID 3056 wrote to memory of 1144	3056	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	97
PID 3056 wrote to memory of 2892	3056	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	99
PID 3056 wrote to memory of 2892	3056	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	99
PID 3056 wrote to memory of 2892	3056	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	99
PID 3056 wrote to memory of 3920	3056	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	102
PID 3056 wrote to memory of 3920	3056	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	102
PID 3056 wrote to memory of 3920	3056	a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe	102
PID 396 wrote to memory of 2516	396	iupmtssg.exe	107
PID 396 wrote to memory of 2516	396	iupmtssg.exe	107
PID 396 wrote to memory of 2516	396	iupmtssg.exe	107
PID 396 wrote to memory of 2516	396	iupmtssg.exe	107
PID 396 wrote to memory of 2516	396	iupmtssg.exe	107

C:\Users\Admin\AppData\Local\Temp\a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qgvdjah\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4520
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iupmtssg.exe" C:\Windows\SysWOW64\qgvdjah\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2292
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qgvdjah binPath= "C:\Windows\SysWOW64\qgvdjah\iupmtssg.exe /d\"C:\Users\Admin\AppData\Local\Temp\a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2224
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qgvdjah "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1144
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qgvdjah
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2892
- 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:3920
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3056 -s 1192
  2⤵
  - Program crash
  PID:3868

C:\Windows\SysWOW64\qgvdjah\iupmtssg.exe
C:\Windows\SysWOW64\qgvdjah\iupmtssg.exe /d"C:\Users\Admin\AppData\Local\Temp\a7c01b6159e5aa569cc67d4ad0a361cd_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:396
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2516
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 512
  2⤵
  - Program crash
  PID:1256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3056 -ip 3056
1⤵
PID:4076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 396 -ip 396
1⤵
PID:3516

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\iupmtssg.exe

Filesize
12.3MB

MD5
a58e661a7bb4905062f70fd2df1a9b93

SHA1
ebd56b48763803a9117957393ce00e48c3b7799a

SHA256
fe77de4e4c8ebad667831b4749c33d6ebd2acc20ec9865036afcbbb55e0c8bd7

SHA512
cc05da2a1972a5d6df9cbe45717433eb771c58d254ebc227547651ed2c0996c3496f2f0b9e0e9fa1cf715932ec478a3256455623415ce391ca763f481125b60f

Download Submit
memory/396-13-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/396-12-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/396-11-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/396-19-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2516-14-0x00000000012F0000-0x0000000001305000-memory.dmp

Filesize
84KB

Download
memory/2516-16-0x00000000012F0000-0x0000000001305000-memory.dmp

Filesize
84KB

Download
memory/2516-17-0x00000000012F0000-0x0000000001305000-memory.dmp

Filesize
84KB

Download
memory/3056-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3056-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3056-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3056-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3056-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/3056-1-0x0000000000460000-0x0000000000560000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads