tofsee | 70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934

General

Target

JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe
Size

238KB
MD5

59495123890f405379efb2be1f540734
SHA1

921d2c24a21fdf66e0146b406e03a14922423b07
SHA256

70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934
SHA512

78dbfbcc4c6be158e698022fdbaea8d4b7ef3a63b8b05e0fa93cd3186f63eddba7dcfb3d24bbe11dd199420ec530dc0c8eaebc81121ebfdcaef8eaa839d69643
SSDEEP

6144:qzNQs30ECx6n19V+OEpr5d7ITsq7igavwVf:qRQs34x6n/I1d79

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
4112	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\bmgnnsay\ImagePath = "C:\\Windows\\SysWOW64\\bmgnnsay\\pzerytsh.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe

Deletes itself 1 IoCs

pid	Process
3676	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5016	pzerytsh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5016 set thread context of 3676	5016	pzerytsh.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3784	sc.exe
5036	sc.exe
2284	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
2520	2684	WerFault.exe	82
440	5016	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	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	pzerytsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 4512	2684	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe	83
PID 2684 wrote to memory of 4512	2684	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe	83
PID 2684 wrote to memory of 4512	2684	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe	83
PID 2684 wrote to memory of 516	2684	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe	85
PID 2684 wrote to memory of 516	2684	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe	85
PID 2684 wrote to memory of 516	2684	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe	85
PID 2684 wrote to memory of 3784	2684	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe	87
PID 2684 wrote to memory of 3784	2684	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe	87
PID 2684 wrote to memory of 3784	2684	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe	87
PID 2684 wrote to memory of 5036	2684	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe	89
PID 2684 wrote to memory of 5036	2684	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe	89
PID 2684 wrote to memory of 5036	2684	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe	89
PID 2684 wrote to memory of 2284	2684	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe	92
PID 2684 wrote to memory of 2284	2684	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe	92
PID 2684 wrote to memory of 2284	2684	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe	92
PID 2684 wrote to memory of 4112	2684	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe	95
PID 2684 wrote to memory of 4112	2684	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe	95
PID 2684 wrote to memory of 4112	2684	JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe	95
PID 5016 wrote to memory of 3676	5016	pzerytsh.exe	101
PID 5016 wrote to memory of 3676	5016	pzerytsh.exe	101
PID 5016 wrote to memory of 3676	5016	pzerytsh.exe	101
PID 5016 wrote to memory of 3676	5016	pzerytsh.exe	101
PID 5016 wrote to memory of 3676	5016	pzerytsh.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bmgnnsay\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4512
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pzerytsh.exe" C:\Windows\SysWOW64\bmgnnsay\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:516
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bmgnnsay binPath= "C:\Windows\SysWOW64\bmgnnsay\pzerytsh.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3784
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bmgnnsay "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bmgnnsay
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2284
- 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:4112
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2684 -s 1248
  2⤵
  - Program crash
  PID:2520

C:\Windows\SysWOW64\bmgnnsay\pzerytsh.exe
C:\Windows\SysWOW64\bmgnnsay\pzerytsh.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_70f65b52920189113e1ae0506801ecb171397fb98b092ebe80ae5c683d479934.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5016
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3676
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 516
  2⤵
  - Program crash
  PID:440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2684 -ip 2684
1⤵
PID:1420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 5016 -ip 5016
1⤵
PID:4536

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\pzerytsh.exe

Filesize
14.5MB

MD5
ddf0bcc13226fd9e5fc23a8ce5f303c4

SHA1
45e9de9325b3a46c28acc0f796ec401fd61ac1e8

SHA256
c1ae749c75a5099deb1ef83d49729c7668dcd9a5410b8d7997eaaade3a1501cf

SHA512
a217ac449021a3f0c679701b518b6e2ebe6978a085d316e736a90d5578b25255a448eaed7cdd5b22e1ec357113d98ba990cb93a5728eba1ffaaeaeabb85c4711

Download Submit
memory/2684-7-0x0000000002190000-0x000000000219D000-memory.dmp

Filesize
52KB

Download
memory/2684-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2684-1-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/2684-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2684-8-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/2684-0-0x0000000002190000-0x000000000219D000-memory.dmp

Filesize
52KB

Download
memory/2684-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3676-13-0x00000000007C0000-0x00000000007D5000-memory.dmp

Filesize
84KB

Download
memory/3676-15-0x00000000007C0000-0x00000000007D5000-memory.dmp

Filesize
84KB

Download
memory/3676-16-0x00000000007C0000-0x00000000007D5000-memory.dmp

Filesize
84KB

Download
memory/5016-12-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/5016-11-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/5016-10-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/5016-17-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads