tofsee | 3546db46d605f744a285fe60fcbacc6b686aa6fae4c32890b030924471e0e59f

General

Target

2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe
Size

99KB
MD5

2b126fbd0352c9ec2f7833af3d0df7ca
SHA1

3bf9cee470ad6cf126635570d89d9d9f30cef386
SHA256

3546db46d605f744a285fe60fcbacc6b686aa6fae4c32890b030924471e0e59f
SHA512

0dfb908197503bf9c1c9deeb015504d1b51d4c00857b34c3862f6c7fd9a4423acb0a068f1b63e2d6757b4c89f2d993e7913767c24d32763afd5e3c1ec43bdcc7
SSDEEP

1536:6Ti28Kx4Cm792SAYqEVvsQS5QqmHN4SMwOVth8+T96R9UB4xw7585yWvNtQ:6TJaCmgSAEsNdm26OV0uofUBCw7O5N/

Score

10^/10

tofsee evasion execution 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) 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

Processes:

netsh.exe

pid process

3008 netsh.exe

pid	process
3008	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\adpxrakv\ImagePath = "C:\\Windows\\SysWOW64\\adpxrakv\\xzulcwdw.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:

2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4364 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

xzulcwdw.exe

pid process

1416 xzulcwdw.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

xzulcwdw.exe

description pid process target process

PID 1416 set thread context of 4364 1416 xzulcwdw.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

4128 sc.exe
3324 sc.exe
388 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4364	svchost.exe

pid	process
1416	xzulcwdw.exe

description	pid	process	target process
PID 1416 set thread context of 4364	1416	xzulcwdw.exe	svchost.exe

pid	process
4128	sc.exe
3324	sc.exe
388	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exexzulcwdw.exe

description	pid	process	target process
PID 64 wrote to memory of 1248	64	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe	cmd.exe
PID 64 wrote to memory of 1248	64	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe	cmd.exe
PID 64 wrote to memory of 1248	64	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe	cmd.exe
PID 64 wrote to memory of 212	64	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe	cmd.exe
PID 64 wrote to memory of 212	64	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe	cmd.exe
PID 64 wrote to memory of 212	64	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe	cmd.exe
PID 64 wrote to memory of 388	64	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe	sc.exe
PID 64 wrote to memory of 388	64	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe	sc.exe
PID 64 wrote to memory of 388	64	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe	sc.exe
PID 64 wrote to memory of 4128	64	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe	sc.exe
PID 64 wrote to memory of 4128	64	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe	sc.exe
PID 64 wrote to memory of 4128	64	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe	sc.exe
PID 64 wrote to memory of 3324	64	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe	sc.exe
PID 64 wrote to memory of 3324	64	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe	sc.exe
PID 64 wrote to memory of 3324	64	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe	sc.exe
PID 1416 wrote to memory of 4364	1416	xzulcwdw.exe	svchost.exe
PID 1416 wrote to memory of 4364	1416	xzulcwdw.exe	svchost.exe
PID 1416 wrote to memory of 4364	1416	xzulcwdw.exe	svchost.exe
PID 1416 wrote to memory of 4364	1416	xzulcwdw.exe	svchost.exe
PID 1416 wrote to memory of 4364	1416	xzulcwdw.exe	svchost.exe
PID 64 wrote to memory of 3008	64	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe	netsh.exe
PID 64 wrote to memory of 3008	64	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe	netsh.exe
PID 64 wrote to memory of 3008	64	2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:64

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\adpxrakv\
2⤵
PID:1248

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xzulcwdw.exe" C:\Windows\SysWOW64\adpxrakv\
2⤵
PID:212

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create adpxrakv binPath= "C:\Windows\SysWOW64\adpxrakv\xzulcwdw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:388

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description adpxrakv "wifi internet conection"
2⤵
- Launches sc.exe
PID:4128

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start adpxrakv
2⤵
- Launches sc.exe
PID:3324

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:3008

C:\Windows\SysWOW64\adpxrakv\xzulcwdw.exe
C:\Windows\SysWOW64\adpxrakv\xzulcwdw.exe /d"C:\Users\Admin\AppData\Local\Temp\2b126fbd0352c9ec2f7833af3d0df7ca_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1416

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:4364

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\xzulcwdw.exe
Filesize
11.9MB

MD5
9d658d67d80404160208b5f66ba93551

SHA1
b62f9fc79c7637b749fd1546ceb95e7e0f65f3de

SHA256
82f0b4b66761a5c6d59556f2e7d3ba63f047c667574920da10866008b77bfcf7

SHA512
150578aae265e394562f4518aaf8f24ef37d10a58c52efc5d9288823d7235e6bf11248e3144e4e7282b3272f05cc870ec00665fd09e96400c164c4d54afd8ef6

Download Submit
memory/64-13-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/64-2-0x0000000000780000-0x0000000000781000-memory.dmp

Filesize
4KB

Download
memory/64-1-0x0000000002180000-0x0000000002181000-memory.dmp

Filesize
4KB

Download
memory/64-0-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1416-7-0x00000000009B0000-0x00000000009B1000-memory.dmp

Filesize
4KB

Download
memory/1416-6-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1416-10-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4364-8-0x0000000001040000-0x0000000001055000-memory.dmp

Filesize
84KB

Download
memory/4364-12-0x0000000001040000-0x0000000001055000-memory.dmp

Filesize
84KB

Download
memory/4364-14-0x0000000001040000-0x0000000001055000-memory.dmp

Filesize
84KB

Download
memory/4364-15-0x0000000001040000-0x0000000001055000-memory.dmp

Filesize
84KB

Download
memory/4364-16-0x0000000001040000-0x0000000001055000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads