tofsee | b3849e6d7b97c3d7e4f1668975783d4432a38b6d4f0c5970d9206871de2caa82

General

Target

fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe
Size

14.1MB
MD5

fdf2c167e3038cd40538ca5a83bddd48
SHA1

ac0c3a598aa28568a5d28d1fc262207f0345c5bc
SHA256

b3849e6d7b97c3d7e4f1668975783d4432a38b6d4f0c5970d9206871de2caa82
SHA512

7cc57649f935d385403e1202c6774b6eda4f79f80aa07cfdd49924368a201d5f0ad3680f0086a912495b7b0db3afea2240d75a1569af99ff8676cdc4c6fb24cb
SSDEEP

6144:Li0TTXfKNnKjmm+AJl6MBK0/etgnc0ArFuyXgWNInP:lKNKjmm+AJlznetgABufeI

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

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

1376 netsh.exe

pid	process
1376	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\zmoomxdx\ImagePath = "C:\\Windows\\SysWOW64\\zmoomxdx\\ppqyezbn.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:

fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1416 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

ppqyezbn.exe

pid process

1956 ppqyezbn.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ppqyezbn.exe

description pid process target process

PID 1956 set thread context of 1416 1956 ppqyezbn.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

4448 sc.exe
5068 sc.exe
2436 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

3112 1952 WerFault.exe fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe
4200 1956 WerFault.exe ppqyezbn.exe

pid	process
1416	svchost.exe

pid	process
1956	ppqyezbn.exe

description	pid	process	target process
PID 1956 set thread context of 1416	1956	ppqyezbn.exe	svchost.exe

pid	process
4448	sc.exe
5068	sc.exe
2436	sc.exe

pid	pid_target	process	target process
3112	1952	WerFault.exe	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe
4200	1956	WerFault.exe	ppqyezbn.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exeppqyezbn.exe

description	pid	process	target process
PID 1952 wrote to memory of 3360	1952	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe	cmd.exe
PID 1952 wrote to memory of 3360	1952	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe	cmd.exe
PID 1952 wrote to memory of 3360	1952	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe	cmd.exe
PID 1952 wrote to memory of 3284	1952	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe	cmd.exe
PID 1952 wrote to memory of 3284	1952	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe	cmd.exe
PID 1952 wrote to memory of 3284	1952	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe	cmd.exe
PID 1952 wrote to memory of 4448	1952	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe	sc.exe
PID 1952 wrote to memory of 4448	1952	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe	sc.exe
PID 1952 wrote to memory of 4448	1952	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe	sc.exe
PID 1952 wrote to memory of 5068	1952	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe	sc.exe
PID 1952 wrote to memory of 5068	1952	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe	sc.exe
PID 1952 wrote to memory of 5068	1952	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe	sc.exe
PID 1952 wrote to memory of 2436	1952	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe	sc.exe
PID 1952 wrote to memory of 2436	1952	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe	sc.exe
PID 1952 wrote to memory of 2436	1952	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe	sc.exe
PID 1952 wrote to memory of 1376	1952	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe	netsh.exe
PID 1952 wrote to memory of 1376	1952	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe	netsh.exe
PID 1952 wrote to memory of 1376	1952	fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe	netsh.exe
PID 1956 wrote to memory of 1416	1956	ppqyezbn.exe	svchost.exe
PID 1956 wrote to memory of 1416	1956	ppqyezbn.exe	svchost.exe
PID 1956 wrote to memory of 1416	1956	ppqyezbn.exe	svchost.exe
PID 1956 wrote to memory of 1416	1956	ppqyezbn.exe	svchost.exe
PID 1956 wrote to memory of 1416	1956	ppqyezbn.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1952

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zmoomxdx\
2⤵
PID:3360

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ppqyezbn.exe" C:\Windows\SysWOW64\zmoomxdx\
2⤵
PID:3284

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create zmoomxdx binPath= "C:\Windows\SysWOW64\zmoomxdx\ppqyezbn.exe /d\"C:\Users\Admin\AppData\Local\Temp\fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4448

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description zmoomxdx "wifi internet conection"
2⤵
- Launches sc.exe
PID:5068

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start zmoomxdx
2⤵
- Launches sc.exe
PID:2436

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:1376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1952 -s 1276
2⤵
- Program crash
PID:3112

C:\Windows\SysWOW64\zmoomxdx\ppqyezbn.exe
C:\Windows\SysWOW64\zmoomxdx\ppqyezbn.exe /d"C:\Users\Admin\AppData\Local\Temp\fdf2c167e3038cd40538ca5a83bddd48_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1956

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:1416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1956 -s 508
2⤵
- Program crash
PID:4200

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1952 -ip 1952
1⤵
PID:2920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1956 -ip 1956
1⤵
PID:1436

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\ppqyezbn.exe

Filesize
10.8MB

MD5
d713c3e75fcb1525bfcb3851546e1648

SHA1
2c068948453d2989dacc7900694386ae05048205

SHA256
d8e913b0abe3b21d78074856560686a219db09bc2ae8be40553f17c0707fc0ca

SHA512
dd62208debe18baeabb70c208b7501ae6bc157c697f31263e99695571e8686fc7486d58f9a85f494b1d2cd654f637137ef22cf6b40be9921e2c06f91c33e7336

Download Submit
memory/1416-16-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/1416-11-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/1416-17-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/1416-19-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/1952-4-0x0000000000400000-0x00000000008E9000-memory.dmp

Filesize
4.9MB

Download
memory/1952-2-0x0000000002630000-0x0000000002643000-memory.dmp

Filesize
76KB

Download
memory/1952-7-0x0000000000400000-0x00000000008E9000-memory.dmp

Filesize
4.9MB

Download
memory/1952-8-0x0000000002630000-0x0000000002643000-memory.dmp

Filesize
76KB

Download
memory/1952-1-0x0000000000B40000-0x0000000000C40000-memory.dmp

Filesize
1024KB

Download
memory/1956-10-0x0000000000AC0000-0x0000000000BC0000-memory.dmp

Filesize
1024KB

Download
memory/1956-13-0x0000000000400000-0x00000000008E9000-memory.dmp

Filesize
4.9MB

Download
memory/1956-18-0x0000000000400000-0x00000000008E9000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads