tofsee | 379955aa858a8443401e40f6576aa54c9243fe38d4dd761f41ab0b5847c2a6fc

General

Target

f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe
Size

10.3MB
MD5

f57f119b34f2ff7f7770200b1eba0e30
SHA1

ed3398edb4b2dd9fcf7130f573b216c88e038ad9
SHA256

379955aa858a8443401e40f6576aa54c9243fe38d4dd761f41ab0b5847c2a6fc
SHA512

31e75d262af0fc371774bd59287afdb7727ddff3cde18da1df4c0cceca86a23cd0bec60ba3b1c178ae9efea6f8710a729e6da993a30e6d6cb3d1e36a0a561b0a
SSDEEP

49152:i1yvllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll:iA

Score

10^/10

tofsee evasion persistence 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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\wdswybrq = "0"	svchost.exe

Creates new service(s) 1 TTPs
persistence

Windows Service
T1543.003
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2624 netsh.exe

pid	process
2624	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wdswybrq\ImagePath = "C:\\Windows\\SysWOW64\\wdswybrq\\wytzsfp.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2536 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

wytzsfp.exe

pid process

2596 wytzsfp.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

wytzsfp.exe

description pid process target process

PID 2596 set thread context of 2536 2596 wytzsfp.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2548 sc.exe
2816 sc.exe
2744 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2536	svchost.exe

pid	process
2596	wytzsfp.exe

description	pid	process	target process
PID 2596 set thread context of 2536	2596	wytzsfp.exe	svchost.exe

pid	process
2548	sc.exe
2816	sc.exe
2744	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exewytzsfp.exe

description	pid	process	target process
PID 2804 wrote to memory of 2600	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	cmd.exe
PID 2804 wrote to memory of 2600	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	cmd.exe
PID 2804 wrote to memory of 2600	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	cmd.exe
PID 2804 wrote to memory of 2600	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	cmd.exe
PID 2804 wrote to memory of 2820	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	cmd.exe
PID 2804 wrote to memory of 2820	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	cmd.exe
PID 2804 wrote to memory of 2820	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	cmd.exe
PID 2804 wrote to memory of 2820	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	cmd.exe
PID 2804 wrote to memory of 2816	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2804 wrote to memory of 2816	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2804 wrote to memory of 2816	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2804 wrote to memory of 2816	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2804 wrote to memory of 2744	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2804 wrote to memory of 2744	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2804 wrote to memory of 2744	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2804 wrote to memory of 2744	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2804 wrote to memory of 2548	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2804 wrote to memory of 2548	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2804 wrote to memory of 2548	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2804 wrote to memory of 2548	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2804 wrote to memory of 2624	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	netsh.exe
PID 2804 wrote to memory of 2624	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	netsh.exe
PID 2804 wrote to memory of 2624	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	netsh.exe
PID 2804 wrote to memory of 2624	2804	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	netsh.exe
PID 2596 wrote to memory of 2536	2596	wytzsfp.exe	svchost.exe
PID 2596 wrote to memory of 2536	2596	wytzsfp.exe	svchost.exe
PID 2596 wrote to memory of 2536	2596	wytzsfp.exe	svchost.exe
PID 2596 wrote to memory of 2536	2596	wytzsfp.exe	svchost.exe
PID 2596 wrote to memory of 2536	2596	wytzsfp.exe	svchost.exe
PID 2596 wrote to memory of 2536	2596	wytzsfp.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2804

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wdswybrq\
2⤵
PID:2600

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wytzsfp.exe" C:\Windows\SysWOW64\wdswybrq\
2⤵
PID:2820

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create wdswybrq binPath= "C:\Windows\SysWOW64\wdswybrq\wytzsfp.exe /d\"C:\Users\Admin\AppData\Local\Temp\f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2816

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description wdswybrq "wifi internet conection"
2⤵
- Launches sc.exe
PID:2744

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start wdswybrq
2⤵
- Launches sc.exe
PID:2548

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
PID:2624

C:\Windows\SysWOW64\wdswybrq\wytzsfp.exe
C:\Windows\SysWOW64\wdswybrq\wytzsfp.exe /d"C:\Users\Admin\AppData\Local\Temp\f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2596

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
10.8MB

MD5
40c2b816d811d7d67a88c764465bd180

SHA1
0d621d246b3dd29ed6ffffc8c69807c7f4280b36

SHA256
3530c5ddc40356f724bc2ff6aa1d249606d136b94d383cf3db9e7e0eb6be3d96

SHA512
fdf158077a10d8b288fd0db7c72f65498df2df57dc9b51937a0de280c5d4e34c33631f65fb2c6c5949ad68414c991bc9d6582c370de9ef083d922a8b3ee6e03e

Download Submit
memory/2536-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2536-22-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2536-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2536-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2536-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2536-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2536-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2596-18-0x0000000000400000-0x0000000000C20000-memory.dmp

Filesize
8.1MB

Download
memory/2596-13-0x0000000000400000-0x0000000000C20000-memory.dmp

Filesize
8.1MB

Download
memory/2596-10-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/2804-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2804-1-0x0000000000D70000-0x0000000000E70000-memory.dmp

Filesize
1024KB

Download
memory/2804-7-0x0000000000400000-0x0000000000C20000-memory.dmp

Filesize
8.1MB

Download
memory/2804-4-0x0000000000400000-0x0000000000C20000-memory.dmp

Filesize
8.1MB

Download
memory/2804-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads