tofsee | 1cfae1204e52198353fa94fd41d6d3496a316735d98f334eb300becdd837d90d

General

Target

fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe
Size

13.5MB
MD5

fdf33bcaac18604051afb04b0b52416f
SHA1

3a125b929ebaea43caf9700fa589d2329e38d019
SHA256

1cfae1204e52198353fa94fd41d6d3496a316735d98f334eb300becdd837d90d
SHA512

bd26dcdfcaa2d61498610613d5e8ca67699f234db3b906a6c982e957474c315e5cff30f9701692c0746eb8d0fab336f9f5a14cb3ffe21569004283599aad75f5
SSDEEP

6144:m2BxZXDsssssssssssssssssssssssssssssssssssssssssssssssssssssssss:m4V

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
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

3852 netsh.exe

pid	process
3852	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\qdwfbqve\ImagePath = "C:\\Windows\\SysWOW64\\qdwfbqve\\adlljhlu.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

Processes:

fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

564 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

adlljhlu.exe

pid process

2196 adlljhlu.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

adlljhlu.exe

description pid process target process

PID 2196 set thread context of 564 2196 adlljhlu.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

4124 sc.exe
1648 sc.exe
2108 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
564	svchost.exe

pid	process
2196	adlljhlu.exe

description	pid	process	target process
PID 2196 set thread context of 564	2196	adlljhlu.exe	svchost.exe

pid	process
4124	sc.exe
1648	sc.exe
2108	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exeadlljhlu.exe

description	pid	process	target process
PID 2264 wrote to memory of 1856	2264	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	cmd.exe
PID 2264 wrote to memory of 1856	2264	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	cmd.exe
PID 2264 wrote to memory of 1856	2264	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	cmd.exe
PID 2264 wrote to memory of 3296	2264	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	cmd.exe
PID 2264 wrote to memory of 3296	2264	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	cmd.exe
PID 2264 wrote to memory of 3296	2264	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	cmd.exe
PID 2264 wrote to memory of 4124	2264	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 4124	2264	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 4124	2264	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 1648	2264	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 1648	2264	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 1648	2264	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 2108	2264	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 2108	2264	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 2108	2264	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 2196 wrote to memory of 564	2196	adlljhlu.exe	svchost.exe
PID 2196 wrote to memory of 564	2196	adlljhlu.exe	svchost.exe
PID 2196 wrote to memory of 564	2196	adlljhlu.exe	svchost.exe
PID 2196 wrote to memory of 564	2196	adlljhlu.exe	svchost.exe
PID 2196 wrote to memory of 564	2196	adlljhlu.exe	svchost.exe
PID 2264 wrote to memory of 3852	2264	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	netsh.exe
PID 2264 wrote to memory of 3852	2264	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	netsh.exe
PID 2264 wrote to memory of 3852	2264	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2264

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qdwfbqve\
2⤵
PID:1856

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\adlljhlu.exe" C:\Windows\SysWOW64\qdwfbqve\
2⤵
PID:3296

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create qdwfbqve binPath= "C:\Windows\SysWOW64\qdwfbqve\adlljhlu.exe /d\"C:\Users\Admin\AppData\Local\Temp\fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4124

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description qdwfbqve "wifi internet conection"
2⤵
- Launches sc.exe
PID:1648

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start qdwfbqve
2⤵
- Launches sc.exe
PID:2108

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:3852

C:\Windows\SysWOW64\qdwfbqve\adlljhlu.exe
C:\Windows\SysWOW64\qdwfbqve\adlljhlu.exe /d"C:\Users\Admin\AppData\Local\Temp\fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2196

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:564

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

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
12.3MB

MD5
60d71b21e4bd729c3a01b8cb9007b149

SHA1
ce9e53733dc5dd997f2937bf8dbef3428d2cdd66

SHA256
30dbc9eb7633dc91dea445c78ed23fd782f9eeea263d314b98cd8a0afaf540c3

SHA512
1e0d429eddcafac4f014e077980bd49768d5c945ba2cf7ec626a7e956b80c30e417d53db134cbb5915882a000c9c7b9b98caf6adcf48c44c61f41d228ab7a389

Download Submit
memory/564-8-0x0000000000FD0000-0x0000000000FE5000-memory.dmp

Filesize
84KB

Download
memory/564-12-0x0000000000FD0000-0x0000000000FE5000-memory.dmp

Filesize
84KB

Download
memory/564-14-0x0000000000FD0000-0x0000000000FE5000-memory.dmp

Filesize
84KB

Download
memory/564-15-0x0000000000FD0000-0x0000000000FE5000-memory.dmp

Filesize
84KB

Download
memory/564-16-0x0000000000FD0000-0x0000000000FE5000-memory.dmp

Filesize
84KB

Download
memory/2196-7-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/2196-9-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2264-1-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2264-0-0x0000000000880000-0x0000000000881000-memory.dmp

Filesize
4KB

Download
memory/2264-2-0x0000000000890000-0x0000000000891000-memory.dmp

Filesize
4KB

Download
memory/2264-13-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads