tofsee | 033cc64af4d9e217e27392f016f003250e17ed026595cb682b5504298ef4cc12

General

Target

f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe
Size

13.2MB
MD5

f98cc65337ea6c995f6af7bea54a1b88
SHA1

388096691f92d4cfa2123ea242dcca5b2dbaa542
SHA256

033cc64af4d9e217e27392f016f003250e17ed026595cb682b5504298ef4cc12
SHA512

7037f54701e9ebf699c76f8ff19a19195d004293bbd2d562ddcac86ecea480fbb4bd6f12c2b907f4163b671c22f8d52e47d636692e41995551f6e376755050fb
SSDEEP

49152:J1yvllllllllllllllllllllllllllllllllllllllllllllllllllllllllllln:JA

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

1968 netsh.exe

pid	process
1968	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\ttpppzu\ImagePath = "C:\\Windows\\SysWOW64\\ttpppzu\\erdatglv.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:

f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2436 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

erdatglv.exe

pid process

936 erdatglv.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

erdatglv.exe

description pid process target process

PID 936 set thread context of 2436 936 erdatglv.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

4776 sc.exe
3904 sc.exe
1056 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

1404 1600 WerFault.exe f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe
3272 936 WerFault.exe erdatglv.exe

pid	process
2436	svchost.exe

pid	process
936	erdatglv.exe

description	pid	process	target process
PID 936 set thread context of 2436	936	erdatglv.exe	svchost.exe

pid	process
4776	sc.exe
3904	sc.exe
1056	sc.exe

pid	pid_target	process	target process
1404	1600	WerFault.exe	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe
3272	936	WerFault.exe	erdatglv.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exeerdatglv.exe

description	pid	process	target process
PID 1600 wrote to memory of 2752	1600	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe	cmd.exe
PID 1600 wrote to memory of 2752	1600	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe	cmd.exe
PID 1600 wrote to memory of 2752	1600	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe	cmd.exe
PID 1600 wrote to memory of 3908	1600	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe	cmd.exe
PID 1600 wrote to memory of 3908	1600	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe	cmd.exe
PID 1600 wrote to memory of 3908	1600	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe	cmd.exe
PID 1600 wrote to memory of 3904	1600	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe	sc.exe
PID 1600 wrote to memory of 3904	1600	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe	sc.exe
PID 1600 wrote to memory of 3904	1600	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe	sc.exe
PID 1600 wrote to memory of 1056	1600	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe	sc.exe
PID 1600 wrote to memory of 1056	1600	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe	sc.exe
PID 1600 wrote to memory of 1056	1600	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe	sc.exe
PID 1600 wrote to memory of 4776	1600	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe	sc.exe
PID 1600 wrote to memory of 4776	1600	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe	sc.exe
PID 1600 wrote to memory of 4776	1600	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe	sc.exe
PID 1600 wrote to memory of 1968	1600	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe	netsh.exe
PID 1600 wrote to memory of 1968	1600	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe	netsh.exe
PID 1600 wrote to memory of 1968	1600	f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe	netsh.exe
PID 936 wrote to memory of 2436	936	erdatglv.exe	svchost.exe
PID 936 wrote to memory of 2436	936	erdatglv.exe	svchost.exe
PID 936 wrote to memory of 2436	936	erdatglv.exe	svchost.exe
PID 936 wrote to memory of 2436	936	erdatglv.exe	svchost.exe
PID 936 wrote to memory of 2436	936	erdatglv.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1600

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ttpppzu\
2⤵
PID:2752

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\erdatglv.exe" C:\Windows\SysWOW64\ttpppzu\
2⤵
PID:3908

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ttpppzu binPath= "C:\Windows\SysWOW64\ttpppzu\erdatglv.exe /d\"C:\Users\Admin\AppData\Local\Temp\f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:3904

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ttpppzu "wifi internet conection"
2⤵
- Launches sc.exe
PID:1056

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ttpppzu
2⤵
- Launches sc.exe
PID:4776

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:1968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1600 -s 660
2⤵
- Program crash
PID:1404

C:\Windows\SysWOW64\ttpppzu\erdatglv.exe
C:\Windows\SysWOW64\ttpppzu\erdatglv.exe /d"C:\Users\Admin\AppData\Local\Temp\f98cc65337ea6c995f6af7bea54a1b88_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:936

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:2436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 936 -s 528
2⤵
- Program crash
PID:3272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1600 -ip 1600
1⤵
PID:4468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 936 -ip 936
1⤵
PID:724

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 --mojo-platform-channel-handle=4168 --field-trial-handle=2284,i,15722001240173834669,15048020084704567542,262144 --variations-seed-version /prefetch:8
1⤵
PID:3308

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\erdatglv.exe

Filesize
11.2MB

MD5
b4c1f95330b577ff94d711dbe2b90c94

SHA1
04d5e19a6d2625789ef3e4e522b18fbeb642b5c9

SHA256
b10a9cc44ec2c7bc7208ca985316ac135a3613c929e7369427743ae6bf00af87

SHA512
2f65f6c878922cfc0b4a458c724b01528e76890f34e0d29616333c15eda15186a6d462e17873f9ac3e50ec30e0b9c095ff240a58facd045f48001d822cfe9532

Download Submit
memory/936-10-0x0000000000DC0000-0x0000000000EC0000-memory.dmp

Filesize
1024KB

Download
memory/936-12-0x0000000000CA0000-0x0000000000CB3000-memory.dmp

Filesize
76KB

Download
memory/936-14-0x0000000000400000-0x0000000000C20000-memory.dmp

Filesize
8.1MB

Download
memory/1600-4-0x0000000000400000-0x0000000000C20000-memory.dmp

Filesize
8.1MB

Download
memory/1600-2-0x0000000000DB0000-0x0000000000DC3000-memory.dmp

Filesize
76KB

Download
memory/1600-8-0x0000000000400000-0x0000000000C20000-memory.dmp

Filesize
8.1MB

Download
memory/1600-1-0x0000000000F60000-0x0000000001060000-memory.dmp

Filesize
1024KB

Download
memory/2436-9-0x0000000000D40000-0x0000000000D55000-memory.dmp

Filesize
84KB

Download
memory/2436-16-0x0000000000D40000-0x0000000000D55000-memory.dmp

Filesize
84KB

Download
memory/2436-18-0x0000000000D40000-0x0000000000D55000-memory.dmp

Filesize
84KB

Download
memory/2436-19-0x0000000000D40000-0x0000000000D55000-memory.dmp

Filesize
84KB

Download
memory/2436-20-0x0000000000D40000-0x0000000000D55000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads