tofsee | a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436

General

Target

JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe
Size

165KB
MD5

9659c961b58202bc02849a619f0301cc
SHA1

874143f8e0d3fbe239b53e93635368e9cf600aaa
SHA256

a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436
SHA512

cd8016808d502de4b223d6789e864a3623dec43ffa0dac7a5fc088d2f00b69141bd54e9af020c43ec2dfe7c6be6e53f9fd83a65683311dee03751edd0ad4f097
SSDEEP

3072:wVebA+J1ZB4rE7coWgd+P+QKcdqd0Tnsie492:nbAS1Z+owoB06jusyk

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
4264	netsh.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe

Executes dropped EXE 1 IoCs

pid	Process
1480	okzzelri.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1480 set thread context of 3608	1480	okzzelri.exe	93

Launches sc.exe 3 IoCs

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

pid	Process
1796	sc.exe
3976	sc.exe
3168	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 8 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	okzzelri.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.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	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2832 wrote to memory of 1868	2832	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe	82
PID 2832 wrote to memory of 1868	2832	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe	82
PID 2832 wrote to memory of 1868	2832	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe	82
PID 2832 wrote to memory of 980	2832	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe	84
PID 2832 wrote to memory of 980	2832	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe	84
PID 2832 wrote to memory of 980	2832	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe	84
PID 2832 wrote to memory of 1796	2832	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe	86
PID 2832 wrote to memory of 1796	2832	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe	86
PID 2832 wrote to memory of 1796	2832	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe	86
PID 2832 wrote to memory of 3976	2832	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe	88
PID 2832 wrote to memory of 3976	2832	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe	88
PID 2832 wrote to memory of 3976	2832	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe	88
PID 2832 wrote to memory of 3168	2832	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe	90
PID 2832 wrote to memory of 3168	2832	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe	90
PID 2832 wrote to memory of 3168	2832	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe	90
PID 1480 wrote to memory of 3608	1480	okzzelri.exe	93
PID 1480 wrote to memory of 3608	1480	okzzelri.exe	93
PID 1480 wrote to memory of 3608	1480	okzzelri.exe	93
PID 1480 wrote to memory of 3608	1480	okzzelri.exe	93
PID 1480 wrote to memory of 3608	1480	okzzelri.exe	93
PID 2832 wrote to memory of 4264	2832	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe	94
PID 2832 wrote to memory of 4264	2832	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe	94
PID 2832 wrote to memory of 4264	2832	JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe	94

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2832
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\geckiezt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1868
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\okzzelri.exe" C:\Windows\SysWOW64\geckiezt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:980
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create geckiezt binPath= "C:\Windows\SysWOW64\geckiezt\okzzelri.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description geckiezt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3976
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start geckiezt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3168
- 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:4264

C:\Windows\SysWOW64\geckiezt\okzzelri.exe
C:\Windows\SysWOW64\geckiezt\okzzelri.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a36d863f97755c43149b33e14b468f5227796c563a7d8cc4b7802e5a05899436.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1480
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:3608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

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

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

1

T1562.004

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\okzzelri.exe

Filesize
10.0MB

MD5
16cb93fe4184314db764b11ec9def8ba

SHA1
df7bcc25d70c2199d053db5b04c2c9eedf57b8e0

SHA256
665ded072edc8c28f94e5fc69b277ff5879a708bb7e31cf4dbcf7506d378899c

SHA512
6831ced63ee95be6c5d14bb07b155d744e9eeb0b6aa4bec7b7ba2fa3809a46d9cd23d79cec97f141da9d933b825b25c3ed1ced80da7c00272434a6f418e9d262

Download Submit
memory/1480-15-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1480-6-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2832-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2832-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2832-11-0x00000000006A0000-0x00000000006AD000-memory.dmp

Filesize
52KB

Download
memory/2832-12-0x00000000006B0000-0x00000000006C3000-memory.dmp

Filesize
76KB

Download
memory/2832-0-0x00000000006A0000-0x00000000006AD000-memory.dmp

Filesize
52KB

Download
memory/2832-14-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2832-1-0x00000000006B0000-0x00000000006C3000-memory.dmp

Filesize
76KB

Download
memory/3608-7-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download
memory/3608-10-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download
memory/3608-17-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download
memory/3608-19-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads