tofsee | bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79

General

Target

JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe
Size

332KB
MD5

5cae962bf42ceb89add6497fb5fa455e
SHA1

bb28f06eeac89f3a38f9d5271c9cc121e94405ec
SHA256

bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79
SHA512

5a5e617152397ee13bae1d08983b9fdb4a0225369fea720ad01d9be5f5fcb8062103f65bdc1175b8db0a5f387b20470ea099fc8d0c3d5f37866c8606c57ff0cc
SSDEEP

6144:Hq80kju85cYfPli8mrak7BKQVKnaQ5ewuqHxxgNu:Hh0AugcsPli8mrak9KQgnaQju8x

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

mubrikych.top

oxxyfix.xyz

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
5000	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\onuumwsj\ImagePath = "C:\\Windows\\SysWOW64\\onuumwsj\\uzzapep.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_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe

Deletes itself 1 IoCs

pid	Process
3880	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3284	uzzapep.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3284 set thread context of 3880	3284	uzzapep.exe	106

Launches sc.exe 3 IoCs

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

pid	Process
1052	sc.exe
2868	sc.exe
4252	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
4264	1928	WerFault.exe	82
4920	3284	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_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.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	uzzapep.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1928 wrote to memory of 2228	1928	JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe	83
PID 1928 wrote to memory of 2228	1928	JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe	83
PID 1928 wrote to memory of 2228	1928	JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe	83
PID 1928 wrote to memory of 4456	1928	JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe	86
PID 1928 wrote to memory of 4456	1928	JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe	86
PID 1928 wrote to memory of 4456	1928	JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe	86
PID 1928 wrote to memory of 1052	1928	JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe	88
PID 1928 wrote to memory of 1052	1928	JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe	88
PID 1928 wrote to memory of 1052	1928	JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe	88
PID 1928 wrote to memory of 2868	1928	JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe	90
PID 1928 wrote to memory of 2868	1928	JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe	90
PID 1928 wrote to memory of 2868	1928	JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe	90
PID 1928 wrote to memory of 4252	1928	JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe	92
PID 1928 wrote to memory of 4252	1928	JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe	92
PID 1928 wrote to memory of 4252	1928	JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe	92
PID 1928 wrote to memory of 5000	1928	JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe	95
PID 1928 wrote to memory of 5000	1928	JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe	95
PID 1928 wrote to memory of 5000	1928	JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe	95
PID 3284 wrote to memory of 3880	3284	uzzapep.exe	106
PID 3284 wrote to memory of 3880	3284	uzzapep.exe	106
PID 3284 wrote to memory of 3880	3284	uzzapep.exe	106
PID 3284 wrote to memory of 3880	3284	uzzapep.exe	106
PID 3284 wrote to memory of 3880	3284	uzzapep.exe	106

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1928
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\onuumwsj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2228
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uzzapep.exe" C:\Windows\SysWOW64\onuumwsj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4456
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create onuumwsj binPath= "C:\Windows\SysWOW64\onuumwsj\uzzapep.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1052
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description onuumwsj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2868
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start onuumwsj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4252
- 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:5000
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1928 -s 748
  2⤵
  - Program crash
  PID:4264

C:\Windows\SysWOW64\onuumwsj\uzzapep.exe
C:\Windows\SysWOW64\onuumwsj\uzzapep.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf1529d684825accdb60acd5f6f8fbe6bc819a705dcda07dd4f565fffdd46b79.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3284
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3880
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3284 -s 532
  2⤵
  - Program crash
  PID:4920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1928 -ip 1928
1⤵
PID:2616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3284 -ip 3284
1⤵
PID:4988

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\uzzapep.exe

Filesize
14.1MB

MD5
fbf96a252ce756759280fd9b64d42263

SHA1
7c16861e576baa83ede9e5ad88e1255ca79fcd58

SHA256
b1c51670356fe538f8fb64cb5f7ddca86a2c21d895f6bc65c73851cfde4d054e

SHA512
240a36c15bde7c1b6b4c4204a7cd4ab45618f4533454df4e1679af9f0034710bd2bbba5ddcbcb94ac1bc07192e3c4876f9982c82f64e536164df4941643c568d

Download Submit
memory/1928-8-0x0000000000680000-0x0000000000693000-memory.dmp

Filesize
76KB

Download
memory/1928-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1928-2-0x0000000000680000-0x0000000000693000-memory.dmp

Filesize
76KB

Download
memory/1928-7-0x0000000000400000-0x00000000004D4000-memory.dmp

Filesize
848KB

Download
memory/1928-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1928-1-0x00000000006B0000-0x00000000007B0000-memory.dmp

Filesize
1024KB

Download
memory/3284-11-0x0000000000400000-0x00000000004D4000-memory.dmp

Filesize
848KB

Download
memory/3284-12-0x0000000000400000-0x00000000004D4000-memory.dmp

Filesize
848KB

Download
memory/3284-18-0x0000000000400000-0x00000000004D4000-memory.dmp

Filesize
848KB

Download
memory/3880-13-0x00000000006A0000-0x00000000006B5000-memory.dmp

Filesize
84KB

Download
memory/3880-15-0x00000000006A0000-0x00000000006B5000-memory.dmp

Filesize
84KB

Download
memory/3880-16-0x00000000006A0000-0x00000000006B5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads