tofsee | babdbb236a46ff8da0ad397d0ce4657ce9f36179b4a32d47824099245c0d32cc

General

Target

592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe
Size

14.6MB
MD5

592365bb3ca24f3aae7c675640de3b38
SHA1

0d0042360b1ea1ac5d4868e370220264b84393b3
SHA256

babdbb236a46ff8da0ad397d0ce4657ce9f36179b4a32d47824099245c0d32cc
SHA512

23e016c84537a039e8fd1388ab25933169e2a18c9728460379d2fe2f74ea3a6b7f714a5f65bc049ed1b8af638a66fd0dc9df3f42e01660e8416707282da9a975
SSDEEP

6144:6tSUszifRNkttttttttttttttttttttttttttttttttttttttttttttttttttttL:oS0f7

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan 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
2008	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\muwvsap\ImagePath = "C:\\Windows\\SysWOW64\\muwvsap\\xcppsrhm.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
5008	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3636	xcppsrhm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3636 set thread context of 5008	3636	xcppsrhm.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
992	sc.exe
4928	sc.exe
3548	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

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	xcppsrhm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4448 wrote to memory of 1512	4448	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	87
PID 4448 wrote to memory of 1512	4448	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	87
PID 4448 wrote to memory of 1512	4448	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	87
PID 4448 wrote to memory of 1196	4448	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	89
PID 4448 wrote to memory of 1196	4448	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	89
PID 4448 wrote to memory of 1196	4448	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	89
PID 4448 wrote to memory of 992	4448	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	91
PID 4448 wrote to memory of 992	4448	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	91
PID 4448 wrote to memory of 992	4448	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	91
PID 4448 wrote to memory of 4928	4448	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	93
PID 4448 wrote to memory of 4928	4448	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	93
PID 4448 wrote to memory of 4928	4448	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	93
PID 4448 wrote to memory of 3548	4448	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	95
PID 4448 wrote to memory of 3548	4448	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	95
PID 4448 wrote to memory of 3548	4448	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	95
PID 3636 wrote to memory of 5008	3636	xcppsrhm.exe	98
PID 3636 wrote to memory of 5008	3636	xcppsrhm.exe	98
PID 3636 wrote to memory of 5008	3636	xcppsrhm.exe	98
PID 3636 wrote to memory of 5008	3636	xcppsrhm.exe	98
PID 3636 wrote to memory of 5008	3636	xcppsrhm.exe	98
PID 4448 wrote to memory of 2008	4448	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	100
PID 4448 wrote to memory of 2008	4448	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	100
PID 4448 wrote to memory of 2008	4448	592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe	100

C:\Users\Admin\AppData\Local\Temp\592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4448
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\muwvsap\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1512
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xcppsrhm.exe" C:\Windows\SysWOW64\muwvsap\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1196
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create muwvsap binPath= "C:\Windows\SysWOW64\muwvsap\xcppsrhm.exe /d\"C:\Users\Admin\AppData\Local\Temp\592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:992
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description muwvsap "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4928
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start muwvsap
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3548
- 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:2008

C:\Windows\SysWOW64\muwvsap\xcppsrhm.exe
C:\Windows\SysWOW64\muwvsap\xcppsrhm.exe /d"C:\Users\Admin\AppData\Local\Temp\592365bb3ca24f3aae7c675640de3b38_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3636
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5008

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\xcppsrhm.exe

Filesize
10.6MB

MD5
4a736bfaed82ba3ee513b414024c0620

SHA1
ac6d03ba67fe8d693e292816d3e37eb98bfbf5f7

SHA256
e4055db3891c70ea77a26d4127a6ce84ed6fcf7e2eef1d00f6847d92f5207e99

SHA512
8fa36b7cca5300678e4fdfc44981962d773d6b220b9f882c843c90eded140131832b22cb4db23762b81a007eed214e03cc0199fcf4f68b681feb1a8b522f84ca

Download Submit
memory/3636-7-0x0000000000630000-0x0000000000631000-memory.dmp

Filesize
4KB

Download
memory/3636-11-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4448-0-0x00000000006B0000-0x00000000006B1000-memory.dmp

Filesize
4KB

Download
memory/4448-2-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/4448-1-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4448-13-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/5008-8-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download
memory/5008-12-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download
memory/5008-14-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download
memory/5008-15-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download
memory/5008-16-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads