tofsee | aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b

General

Target

JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe
Size

340KB
MD5

4fc5de69bdd1bbb7df7d71f154fce436
SHA1

893d9b742a2291bf75808035751b34bbc435fe7c
SHA256

aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b
SHA512

976ec301d00d28a47634ef7b1c133fb287dd1f27d575b5f60eee84cb66273cb60177f454ea7c00d64092f13abe21b2fbee9861ce01e2553bbd36ce58ee086b5c
SSDEEP

6144:MS2WA8SG69ck1We5RgrvQl2MWA+3LzKeiT:MS2WARGWL1B5RgrvQl2v/KhT

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
4280	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\tbhipsqp\ImagePath = "C:\\Windows\\SysWOW64\\tbhipsqp\\zfadmvvq.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe

Deletes itself 1 IoCs

pid	Process
2812	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4572	zfadmvvq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4572 set thread context of 2812	4572	zfadmvvq.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
4564	sc.exe
1476	sc.exe
5056	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
4852	636	WerFault.exe	82
1732	4572	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zfadmvvq.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 636 wrote to memory of 1480	636	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	83
PID 636 wrote to memory of 1480	636	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	83
PID 636 wrote to memory of 1480	636	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	83
PID 636 wrote to memory of 2604	636	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	85
PID 636 wrote to memory of 2604	636	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	85
PID 636 wrote to memory of 2604	636	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	85
PID 636 wrote to memory of 5056	636	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	87
PID 636 wrote to memory of 5056	636	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	87
PID 636 wrote to memory of 5056	636	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	87
PID 636 wrote to memory of 4564	636	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	89
PID 636 wrote to memory of 4564	636	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	89
PID 636 wrote to memory of 4564	636	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	89
PID 636 wrote to memory of 1476	636	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	91
PID 636 wrote to memory of 1476	636	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	91
PID 636 wrote to memory of 1476	636	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	91
PID 636 wrote to memory of 4280	636	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	94
PID 636 wrote to memory of 4280	636	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	94
PID 636 wrote to memory of 4280	636	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	94
PID 4572 wrote to memory of 2812	4572	zfadmvvq.exe	100
PID 4572 wrote to memory of 2812	4572	zfadmvvq.exe	100
PID 4572 wrote to memory of 2812	4572	zfadmvvq.exe	100
PID 4572 wrote to memory of 2812	4572	zfadmvvq.exe	100
PID 4572 wrote to memory of 2812	4572	zfadmvvq.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:636
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tbhipsqp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1480
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zfadmvvq.exe" C:\Windows\SysWOW64\tbhipsqp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2604
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tbhipsqp binPath= "C:\Windows\SysWOW64\tbhipsqp\zfadmvvq.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tbhipsqp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tbhipsqp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1476
- 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:4280
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 636 -s 1048
  2⤵
  - Program crash
  PID:4852

C:\Windows\SysWOW64\tbhipsqp\zfadmvvq.exe
C:\Windows\SysWOW64\tbhipsqp\zfadmvvq.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4572
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4572 -s 512
  2⤵
  - Program crash
  PID:1732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 636 -ip 636
1⤵
PID:4628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4572 -ip 4572
1⤵
PID:2620

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\zfadmvvq.exe

Filesize
12.3MB

MD5
e5d18d939daba6b38ce76ee5ca860bf9

SHA1
cf779b1e268b974d8490f7011d5c73bc91d5357e

SHA256
a8b8a618ff01a3b99fd37316b19d3dbb0ac006935fa6c49c63e18faa3943f57d

SHA512
ca31b1f6134df35553f502c6738f259f165b3092e3fb7977014cc64ab40527ae19a560bd9fa3178ed6347d46eec4488f077cebd3e0da1efa2d2d12c8c7b2dac6

Download Submit
memory/636-1-0x0000000000B00000-0x0000000000C00000-memory.dmp

Filesize
1024KB

Download
memory/636-2-0x0000000000AA0000-0x0000000000AB3000-memory.dmp

Filesize
76KB

Download
memory/636-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/636-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/636-8-0x0000000000AA0000-0x0000000000AB3000-memory.dmp

Filesize
76KB

Download
memory/636-7-0x0000000000400000-0x00000000008F9000-memory.dmp

Filesize
5.0MB

Download
memory/2812-11-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/2812-13-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/2812-14-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/4572-15-0x0000000000400000-0x00000000008F9000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads