tofsee | cee4a877da71cd3d838f2f424d4c53c696eb3a0485fef0c31bd37e033cd3ceb3

General

Target

0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe
Size

168KB
MD5

0653cbfb8de2166a48ef0b6c0d3b48ca
SHA1

69bac9fae0be9acb4b867c41b30bd4a76f8a7203
SHA256

cee4a877da71cd3d838f2f424d4c53c696eb3a0485fef0c31bd37e033cd3ceb3
SHA512

518843e08379f094c01617c214dc7d2a195aefda9c4fc065ea2c098a89ee7f080ddfe984a62b7eb0d2a75af7991cbfd6b7678860b1996f6d10bdc98b2c67dec8
SSDEEP

3072:odrkBHPRPZwriqxN+GVd8475x42WCJ/t4:JPRPZwriIxl7Z

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

Processes:

netsh.exe

pid process

464 netsh.exe

pid	process
464	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\irxoftsg\ImagePath = "C:\\Windows\\SysWOW64\\irxoftsg\\frmjqppd.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

Processes:

0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

3088 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

frmjqppd.exe

pid process

2028 frmjqppd.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

frmjqppd.exe

description pid process target process

PID 2028 set thread context of 3088 2028 frmjqppd.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

1520 sc.exe
3064 sc.exe
4844 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3088	svchost.exe

pid	process
2028	frmjqppd.exe

description	pid	process	target process
PID 2028 set thread context of 3088	2028	frmjqppd.exe	svchost.exe

pid	process
1520	sc.exe
3064	sc.exe
4844	sc.exe

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

Processes:

netsh.exe

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

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

2804 4260 WerFault.exe 0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe
3816 2028 WerFault.exe frmjqppd.exe

pid	pid_target	process	target process
2804	4260	WerFault.exe	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe
3816	2028	WerFault.exe	frmjqppd.exe

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

Processes:

sc.exesc.execmd.exesc.exenetsh.exefrmjqppd.exesvchost.exe0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.execmd.exe

description	ioc	process
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	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	frmjqppd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exefrmjqppd.exe

description	pid	process	target process
PID 4260 wrote to memory of 2552	4260	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	cmd.exe
PID 4260 wrote to memory of 2552	4260	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	cmd.exe
PID 4260 wrote to memory of 2552	4260	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	cmd.exe
PID 4260 wrote to memory of 4932	4260	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	cmd.exe
PID 4260 wrote to memory of 4932	4260	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	cmd.exe
PID 4260 wrote to memory of 4932	4260	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	cmd.exe
PID 4260 wrote to memory of 1520	4260	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 4260 wrote to memory of 1520	4260	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 4260 wrote to memory of 1520	4260	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 4260 wrote to memory of 3064	4260	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 4260 wrote to memory of 3064	4260	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 4260 wrote to memory of 3064	4260	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 4260 wrote to memory of 4844	4260	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 4260 wrote to memory of 4844	4260	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 4260 wrote to memory of 4844	4260	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 4260 wrote to memory of 464	4260	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	netsh.exe
PID 4260 wrote to memory of 464	4260	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	netsh.exe
PID 4260 wrote to memory of 464	4260	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	netsh.exe
PID 2028 wrote to memory of 3088	2028	frmjqppd.exe	svchost.exe
PID 2028 wrote to memory of 3088	2028	frmjqppd.exe	svchost.exe
PID 2028 wrote to memory of 3088	2028	frmjqppd.exe	svchost.exe
PID 2028 wrote to memory of 3088	2028	frmjqppd.exe	svchost.exe
PID 2028 wrote to memory of 3088	2028	frmjqppd.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4260
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\irxoftsg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2552
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\frmjqppd.exe" C:\Windows\SysWOW64\irxoftsg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4932
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create irxoftsg binPath= "C:\Windows\SysWOW64\irxoftsg\frmjqppd.exe /d\"C:\Users\Admin\AppData\Local\Temp\0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1520
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description irxoftsg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start irxoftsg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4844
- 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:464
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4260 -s 1040
  2⤵
  - Program crash
  PID:2804

C:\Windows\SysWOW64\irxoftsg\frmjqppd.exe
C:\Windows\SysWOW64\irxoftsg\frmjqppd.exe /d"C:\Users\Admin\AppData\Local\Temp\0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3088
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2028 -s 528
  2⤵
  - Program crash
  PID:3816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4260 -ip 4260
1⤵
PID:4212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2028 -ip 2028
1⤵
PID:3648

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\frmjqppd.exe

Filesize
11.3MB

MD5
44c4cf035ed84ad4904284dcc349d8cb

SHA1
0fa1c6d15ffb23fb4e7e47e2cbfe15629a485d0c

SHA256
f65397253ea4177c2c8deafa164764c20391a8afdd8c070b053ba58167978f1a

SHA512
614a53c32ccb24d6c5c013490a2d00aaf740d6725a60a1f1b5aafa1e33d941bc843701e60b3e60908847ac280716c5b375500a88e5717274e8a206bae16e6925

Download Submit
memory/2028-13-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2028-11-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2028-12-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2028-18-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3088-16-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/3088-14-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/3088-17-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/4260-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4260-2-0x00000000021E0000-0x00000000021F3000-memory.dmp

Filesize
76KB

Download
memory/4260-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4260-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4260-9-0x00000000021E0000-0x00000000021F3000-memory.dmp

Filesize
76KB

Download
memory/4260-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads