tofsee | bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86

General

Target

JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe
Size

160KB
MD5

f8fc9486f54b60f1803e7690a9a2458a
SHA1

c9dd64c456997592297c283ba996410730bf7c7d
SHA256

bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86
SHA512

5e103634b44ceb7da4966361fed745f2604c37afd76a07631d06a8fd5903c7e58505b963bfb1aaacf24c3b4a57ae48db72cc630912826a52bbff1736bc2e19bb
SSDEEP

3072:oN768L++ZHa/PtPPtMOgPljef9J9NR6vmp1n5Rw7HvON3:y681A/PtXtMHK1JQyJYLv

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
796	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\lmsbwkwf\ImagePath = "C:\\Windows\\SysWOW64\\lmsbwkwf\\eraxydpc.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe

Deletes itself 1 IoCs

pid	Process
3732	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1748	eraxydpc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1748 set thread context of 3732	1748	eraxydpc.exe	93

Launches sc.exe 3 IoCs

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

pid	Process
5068	sc.exe
3372	sc.exe
824	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
2180	1748	WerFault.exe	92
4980	400	WerFault.exe	81

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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eraxydpc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 400 wrote to memory of 208	400	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	82
PID 400 wrote to memory of 208	400	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	82
PID 400 wrote to memory of 208	400	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	82
PID 400 wrote to memory of 3752	400	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	84
PID 400 wrote to memory of 3752	400	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	84
PID 400 wrote to memory of 3752	400	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	84
PID 400 wrote to memory of 5068	400	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	86
PID 400 wrote to memory of 5068	400	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	86
PID 400 wrote to memory of 5068	400	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	86
PID 400 wrote to memory of 3372	400	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	88
PID 400 wrote to memory of 3372	400	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	88
PID 400 wrote to memory of 3372	400	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	88
PID 400 wrote to memory of 824	400	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	90
PID 400 wrote to memory of 824	400	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	90
PID 400 wrote to memory of 824	400	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	90
PID 1748 wrote to memory of 3732	1748	eraxydpc.exe	93
PID 1748 wrote to memory of 3732	1748	eraxydpc.exe	93
PID 1748 wrote to memory of 3732	1748	eraxydpc.exe	93
PID 1748 wrote to memory of 3732	1748	eraxydpc.exe	93
PID 1748 wrote to memory of 3732	1748	eraxydpc.exe	93
PID 400 wrote to memory of 796	400	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	97
PID 400 wrote to memory of 796	400	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	97
PID 400 wrote to memory of 796	400	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:400
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lmsbwkwf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:208
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eraxydpc.exe" C:\Windows\SysWOW64\lmsbwkwf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lmsbwkwf binPath= "C:\Windows\SysWOW64\lmsbwkwf\eraxydpc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5068
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lmsbwkwf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3372
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lmsbwkwf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:824
- 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:796
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 400 -s 1160
  2⤵
  - Program crash
  PID:4980

C:\Windows\SysWOW64\lmsbwkwf\eraxydpc.exe
C:\Windows\SysWOW64\lmsbwkwf\eraxydpc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1748
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3732
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1748 -s 560
  2⤵
  - Program crash
  PID:2180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1748 -ip 1748
1⤵
PID:2184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 400 -ip 400
1⤵
PID:3356

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\eraxydpc.exe

Filesize
10.3MB

MD5
3993b7c62657ce75156cb0c5d1e73103

SHA1
0bd7c8ef04d1a95a38b4258e811aaac46eaadb0d

SHA256
084d8ade1d88d6e535603d0b2c92c5c3259fc0174a6cf7a6b755fd2904b74b30

SHA512
3022a56105fa338bd4b00dcd142565841e5e60a7dead2fe4c5b50bb3205f2dfbd0c98701a506931f704129d61c71386e78dacf1941032c6e4929726a44cd20da

Download Submit
memory/400-15-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/400-1-0x00000000021B0000-0x00000000021C3000-memory.dmp

Filesize
76KB

Download
memory/400-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/400-0-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/400-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/400-16-0x00000000021B0000-0x00000000021C3000-memory.dmp

Filesize
76KB

Download
memory/1748-7-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1748-14-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1748-8-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1748-6-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/3732-12-0x0000000001270000-0x0000000001285000-memory.dmp

Filesize
84KB

Download
memory/3732-9-0x0000000001270000-0x0000000001285000-memory.dmp

Filesize
84KB

Download
memory/3732-18-0x0000000001270000-0x0000000001285000-memory.dmp

Filesize
84KB

Download
memory/3732-19-0x0000000001270000-0x0000000001285000-memory.dmp

Filesize
84KB

Download
memory/3732-20-0x0000000001270000-0x0000000001285000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads