tofsee | f0d18843cd2adf8eb01fb11839339c7f8ef134ace9f9d5a4f1bf4b6229808a07

General

Target

f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe
Size

14.5MB
MD5

f22195b83a3c4e02677a69e80c8b66fe
SHA1

22bb4f0bb5e5a74919c826951f6452379b5ab270
SHA256

f0d18843cd2adf8eb01fb11839339c7f8ef134ace9f9d5a4f1bf4b6229808a07
SHA512

93e9675c2f83bac2d27bb7df7c02e95208cddf763b020ee4c7655a79eff1b77b2afd7c6d695df66b429c429f03d1154bc6fdf0d0775b8c9144b4d271f8027c41
SSDEEP

6144:X5VCb4QuzF5pIozzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz:J8NKF5p

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

4612 netsh.exe

pid	process
4612	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\lzrygyyi\ImagePath = "C:\\Windows\\SysWOW64\\lzrygyyi\\edplqakx.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:

f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\Control Panel\International\Geo\Nation	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2796 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

edplqakx.exe

pid process

4744 edplqakx.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

edplqakx.exe

description pid process target process

PID 4744 set thread context of 2796 4744 edplqakx.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

3480 sc.exe
4024 sc.exe
3052 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2796	svchost.exe

pid	process
4744	edplqakx.exe

description	pid	process	target process
PID 4744 set thread context of 2796	4744	edplqakx.exe	svchost.exe

pid	process
3480	sc.exe
4024	sc.exe
3052	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exeedplqakx.exe

description	pid	process	target process
PID 3304 wrote to memory of 1644	3304	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	cmd.exe
PID 3304 wrote to memory of 1644	3304	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	cmd.exe
PID 3304 wrote to memory of 1644	3304	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	cmd.exe
PID 3304 wrote to memory of 4732	3304	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	cmd.exe
PID 3304 wrote to memory of 4732	3304	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	cmd.exe
PID 3304 wrote to memory of 4732	3304	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	cmd.exe
PID 3304 wrote to memory of 4024	3304	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3304 wrote to memory of 4024	3304	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3304 wrote to memory of 4024	3304	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3304 wrote to memory of 3052	3304	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3304 wrote to memory of 3052	3304	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3304 wrote to memory of 3052	3304	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3304 wrote to memory of 3480	3304	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3304 wrote to memory of 3480	3304	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3304 wrote to memory of 3480	3304	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	sc.exe
PID 3304 wrote to memory of 4612	3304	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	netsh.exe
PID 3304 wrote to memory of 4612	3304	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	netsh.exe
PID 3304 wrote to memory of 4612	3304	f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe	netsh.exe
PID 4744 wrote to memory of 2796	4744	edplqakx.exe	svchost.exe
PID 4744 wrote to memory of 2796	4744	edplqakx.exe	svchost.exe
PID 4744 wrote to memory of 2796	4744	edplqakx.exe	svchost.exe
PID 4744 wrote to memory of 2796	4744	edplqakx.exe	svchost.exe
PID 4744 wrote to memory of 2796	4744	edplqakx.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3304

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lzrygyyi\
2⤵
PID:1644

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\edplqakx.exe" C:\Windows\SysWOW64\lzrygyyi\
2⤵
PID:4732

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create lzrygyyi binPath= "C:\Windows\SysWOW64\lzrygyyi\edplqakx.exe /d\"C:\Users\Admin\AppData\Local\Temp\f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4024

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description lzrygyyi "wifi internet conection"
2⤵
- Launches sc.exe
PID:3052

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start lzrygyyi
2⤵
- Launches sc.exe
PID:3480

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:4612

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4192,i,4770062162764366287,7825742579436984831,262144 --variations-seed-version --mojo-platform-channel-handle=4112 /prefetch:8
1⤵
PID:4872

C:\Windows\SysWOW64\lzrygyyi\edplqakx.exe
C:\Windows\SysWOW64\lzrygyyi\edplqakx.exe /d"C:\Users\Admin\AppData\Local\Temp\f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4744

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:2796

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\edplqakx.exe
Filesize
11.7MB

MD5
87ccdcc44a9f68a9b4592292839f95cc

SHA1
d686491c58972d9704bf04fbc7ed03dc7833df38

SHA256
d9e5559add026273d1915cf583145a3fa8cea6abafdcb3d1e4efc9a78cba1f5a

SHA512
0e608b0c7c979e58f70074baf3fb760e671c6cf0741a46db7c737f181da2e0d52abd21f9b0364cc661c6d4bcb366c67ccc2ed8ee8b5cbd6ad453c824329db64e

Download Submit
memory/2796-3-0x0000000000340000-0x0000000000355000-memory.dmp

Filesize
84KB

Download
memory/2796-5-0x0000000000340000-0x0000000000355000-memory.dmp

Filesize
84KB

Download
memory/2796-7-0x0000000000340000-0x0000000000355000-memory.dmp

Filesize
84KB

Download
memory/2796-6-0x0000000000340000-0x0000000000355000-memory.dmp

Filesize
84KB

Download
memory/2796-8-0x0000000000340000-0x0000000000355000-memory.dmp

Filesize
84KB

Download
memory/2796-9-0x0000000000340000-0x0000000000355000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads