tofsee | 1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7

General

Target

JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe
Size

177KB
MD5

6423f85e4b535c44776aef880d374f69
SHA1

deda6c4c481520b746aadd6a2cd8d2a3b2ab7387
SHA256

1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7
SHA512

67e9aeeb739a022bcdd246802b7c2aafbb68a5b34d2c47b34ba4463e12304a4452447a509ac4408d2e461f9e118f419c664db9004cb0656cb2e1e5eaf818436f
SSDEEP

3072:M76gzl90ytyk8oeETSOZa30H3iVr8vYSfv5fo88STbR:6l90yYxnmgKiVroYSH537TbR

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
4620	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\nccunzji\ImagePath = "C:\\Windows\\SysWOW64\\nccunzji\\awllqxdu.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe

Deletes itself 1 IoCs

pid	Process
1868	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1968	awllqxdu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1968 set thread context of 1868	1968	awllqxdu.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
4616	sc.exe
1532	sc.exe
1232	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
1276	1448	WerFault.exe	83
3208	1968	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_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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	awllqxdu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 2192	1448	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	84
PID 1448 wrote to memory of 2192	1448	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	84
PID 1448 wrote to memory of 2192	1448	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	84
PID 1448 wrote to memory of 1796	1448	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	86
PID 1448 wrote to memory of 1796	1448	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	86
PID 1448 wrote to memory of 1796	1448	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	86
PID 1448 wrote to memory of 4616	1448	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	88
PID 1448 wrote to memory of 4616	1448	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	88
PID 1448 wrote to memory of 4616	1448	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	88
PID 1448 wrote to memory of 1532	1448	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	90
PID 1448 wrote to memory of 1532	1448	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	90
PID 1448 wrote to memory of 1532	1448	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	90
PID 1448 wrote to memory of 1232	1448	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	92
PID 1448 wrote to memory of 1232	1448	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	92
PID 1448 wrote to memory of 1232	1448	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	92
PID 1968 wrote to memory of 1868	1968	awllqxdu.exe	95
PID 1968 wrote to memory of 1868	1968	awllqxdu.exe	95
PID 1968 wrote to memory of 1868	1968	awllqxdu.exe	95
PID 1968 wrote to memory of 1868	1968	awllqxdu.exe	95
PID 1968 wrote to memory of 1868	1968	awllqxdu.exe	95
PID 1448 wrote to memory of 4620	1448	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	98
PID 1448 wrote to memory of 4620	1448	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	98
PID 1448 wrote to memory of 4620	1448	JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1448
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nccunzji\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2192
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\awllqxdu.exe" C:\Windows\SysWOW64\nccunzji\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nccunzji binPath= "C:\Windows\SysWOW64\nccunzji\awllqxdu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4616
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nccunzji "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1532
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nccunzji
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1232
- 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:4620
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1448 -s 1328
  2⤵
  - Program crash
  PID:1276

C:\Windows\SysWOW64\nccunzji\awllqxdu.exe
C:\Windows\SysWOW64\nccunzji\awllqxdu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1891ac99238154818307b45371498641029362dfcc8fd34553814b2cc8e66ae7.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1968 -s 528
  2⤵
  - Program crash
  PID:3208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1968 -ip 1968
1⤵
PID:2228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1448 -ip 1448
1⤵
PID:3736

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\awllqxdu.exe

Filesize
11.2MB

MD5
675ab92ae36e197aca01bbc404f2a1cd

SHA1
658ea7cc44b15cc01a723d4c56cfad1f108cbdd6

SHA256
f6e451613956c18315468d576fc874f9b22cfb55d7de72a88cf28258bb2b0a4e

SHA512
49469641399ce3ab28770df0ece8a9fa003aa0b484176bdcc766c08d76f62a67de9695f863c8596c48c9a81d465e8b559b576a487370e8951a60e8d05d2503ff

Download Submit
memory/1448-0-0x0000000000510000-0x000000000051D000-memory.dmp

Filesize
52KB

Download
memory/1448-1-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/1448-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1448-16-0x0000000000510000-0x000000000051D000-memory.dmp

Filesize
52KB

Download
memory/1448-17-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/1448-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1448-15-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1868-12-0x0000000000E60000-0x0000000000E75000-memory.dmp

Filesize
84KB

Download
memory/1868-9-0x0000000000E60000-0x0000000000E75000-memory.dmp

Filesize
84KB

Download
memory/1868-19-0x0000000000E60000-0x0000000000E75000-memory.dmp

Filesize
84KB

Download
memory/1868-20-0x0000000000E60000-0x0000000000E75000-memory.dmp

Filesize
84KB

Download
memory/1868-21-0x0000000000E60000-0x0000000000E75000-memory.dmp

Filesize
84KB

Download
memory/1968-14-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1968-7-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1968-8-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1968-6-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads