tofsee | 92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3

General

Target

JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe
Size

291KB
MD5

bce83cac12042215bc24bedde28e1319
SHA1

0a0f5ede583ea223fba4587dd3123d01dfad87fd
SHA256

92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3
SHA512

ae43966488722a4f4e25ff268fbd10c9a078259ef44289b65da5087e26c34ff265b919decfb66dfe258fde7bf68a24703fed56c30f1235220d1dd970fd00b9ff
SSDEEP

3072:101pH7yO9LeVPlZ7EoQt8Y4jMvlmM4jGeJSXuZet0ySbS1HI8MUr6BLk+r+t6Rwq:ooXjMtm/JSXuZet0ySbIHVZmBA+k6Gq

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
2388	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\wybvitur\ImagePath = "C:\\Windows\\SysWOW64\\wybvitur\\chgeuajy.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe

Deletes itself 1 IoCs

pid	Process
4456	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
752	chgeuajy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 752 set thread context of 4456	752	chgeuajy.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
3680	sc.exe
1476	sc.exe
3256	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
620	4672	WerFault.exe	82
4548	752	WerFault.exe	93

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chgeuajy.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4672 wrote to memory of 4756	4672	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	83
PID 4672 wrote to memory of 4756	4672	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	83
PID 4672 wrote to memory of 4756	4672	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	83
PID 4672 wrote to memory of 4284	4672	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	85
PID 4672 wrote to memory of 4284	4672	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	85
PID 4672 wrote to memory of 4284	4672	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	85
PID 4672 wrote to memory of 3680	4672	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	87
PID 4672 wrote to memory of 3680	4672	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	87
PID 4672 wrote to memory of 3680	4672	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	87
PID 4672 wrote to memory of 1476	4672	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	89
PID 4672 wrote to memory of 1476	4672	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	89
PID 4672 wrote to memory of 1476	4672	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	89
PID 4672 wrote to memory of 3256	4672	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	91
PID 4672 wrote to memory of 3256	4672	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	91
PID 4672 wrote to memory of 3256	4672	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	91
PID 4672 wrote to memory of 2388	4672	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	94
PID 4672 wrote to memory of 2388	4672	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	94
PID 4672 wrote to memory of 2388	4672	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	94
PID 752 wrote to memory of 4456	752	chgeuajy.exe	100
PID 752 wrote to memory of 4456	752	chgeuajy.exe	100
PID 752 wrote to memory of 4456	752	chgeuajy.exe	100
PID 752 wrote to memory of 4456	752	chgeuajy.exe	100
PID 752 wrote to memory of 4456	752	chgeuajy.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4672
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wybvitur\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\chgeuajy.exe" C:\Windows\SysWOW64\wybvitur\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4284
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wybvitur binPath= "C:\Windows\SysWOW64\wybvitur\chgeuajy.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3680
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wybvitur "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1476
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wybvitur
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3256
- 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:2388
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4672 -s 1036
  2⤵
  - Program crash
  PID:620

C:\Windows\SysWOW64\wybvitur\chgeuajy.exe
C:\Windows\SysWOW64\wybvitur\chgeuajy.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:752
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4456
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 752 -s 512
  2⤵
  - Program crash
  PID:4548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4672 -ip 4672
1⤵
PID:4152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 752 -ip 752
1⤵
PID:2880

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\chgeuajy.exe

Filesize
14.2MB

MD5
18c6c18e2a355abe8370a1ea1da3dfd4

SHA1
d359167b144e4712b8273a306c713e8bb25c6859

SHA256
bced29d8316db35b2cdf657b4eb16eabddbc3f92fbdcaa7c3e41301b3c13ad2a

SHA512
8c796d473d9cf4cffc1a4d7b09e641d9170da9d8676409955e3808e873d57901acf71cb2a0c39bbcd6a6b49ed45428889c582904e74b6a3594713c05b05d2a73

Download Submit
memory/752-15-0x0000000000400000-0x0000000002B41000-memory.dmp

Filesize
39.3MB

Download
memory/4456-11-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/4456-13-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/4456-14-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/4672-1-0x0000000002D20000-0x0000000002E20000-memory.dmp

Filesize
1024KB

Download
memory/4672-2-0x0000000002CC0000-0x0000000002CD3000-memory.dmp

Filesize
76KB

Download
memory/4672-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4672-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4672-8-0x0000000002CC0000-0x0000000002CD3000-memory.dmp

Filesize
76KB

Download
memory/4672-7-0x0000000000400000-0x0000000002B41000-memory.dmp

Filesize
39.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads