tofsee | 9737872b02523817b0be8bdcae4c70ec3477c5f7ef4a6ec35b5c45f29f0b2980

General

Target

f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe
Size

10.7MB
MD5

f56ce0db616131aab23985d13dfd55f4
SHA1

53bedf97c325b3d0ec987dece302cf66e52e2ff3
SHA256

9737872b02523817b0be8bdcae4c70ec3477c5f7ef4a6ec35b5c45f29f0b2980
SHA512

b29d4a8328aedb8f30bd7758ba278ffacab1fc942db747639074d8ac5e87f5c40024412a1dbe75a8ebcfd7a410ad5dde022a1825f7c2558e1949928e8420b34e
SSDEEP

12288:AdY3RyLHWIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIP:AwyD

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

176.111.174.19

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

4088 netsh.exe

pid	process
4088	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\qalkscyj\ImagePath = "C:\\Windows\\SysWOW64\\qalkscyj\\gwzeinzw.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:

f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4464 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

gwzeinzw.exe

pid process

1300 gwzeinzw.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

gwzeinzw.exe

description pid process target process

PID 1300 set thread context of 4464 1300 gwzeinzw.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

2700 sc.exe
2768 sc.exe
4572 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

684 4452 WerFault.exe f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe
4680 1300 WerFault.exe gwzeinzw.exe

pid	process
4464	svchost.exe

pid	process
1300	gwzeinzw.exe

description	pid	process	target process
PID 1300 set thread context of 4464	1300	gwzeinzw.exe	svchost.exe

pid	process
2700	sc.exe
2768	sc.exe
4572	sc.exe

pid	pid_target	process	target process
684	4452	WerFault.exe	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe
4680	1300	WerFault.exe	gwzeinzw.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exegwzeinzw.exe

description	pid	process	target process
PID 4452 wrote to memory of 2536	4452	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	cmd.exe
PID 4452 wrote to memory of 2536	4452	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	cmd.exe
PID 4452 wrote to memory of 2536	4452	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	cmd.exe
PID 4452 wrote to memory of 3540	4452	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	cmd.exe
PID 4452 wrote to memory of 3540	4452	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	cmd.exe
PID 4452 wrote to memory of 3540	4452	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	cmd.exe
PID 4452 wrote to memory of 4572	4452	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 4452 wrote to memory of 4572	4452	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 4452 wrote to memory of 4572	4452	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 4452 wrote to memory of 2700	4452	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 4452 wrote to memory of 2700	4452	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 4452 wrote to memory of 2700	4452	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 4452 wrote to memory of 2768	4452	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 4452 wrote to memory of 2768	4452	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 4452 wrote to memory of 2768	4452	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 4452 wrote to memory of 4088	4452	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	netsh.exe
PID 4452 wrote to memory of 4088	4452	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	netsh.exe
PID 4452 wrote to memory of 4088	4452	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	netsh.exe
PID 1300 wrote to memory of 4464	1300	gwzeinzw.exe	svchost.exe
PID 1300 wrote to memory of 4464	1300	gwzeinzw.exe	svchost.exe
PID 1300 wrote to memory of 4464	1300	gwzeinzw.exe	svchost.exe
PID 1300 wrote to memory of 4464	1300	gwzeinzw.exe	svchost.exe
PID 1300 wrote to memory of 4464	1300	gwzeinzw.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4452

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qalkscyj\
2⤵
PID:2536

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gwzeinzw.exe" C:\Windows\SysWOW64\qalkscyj\
2⤵
PID:3540

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create qalkscyj binPath= "C:\Windows\SysWOW64\qalkscyj\gwzeinzw.exe /d\"C:\Users\Admin\AppData\Local\Temp\f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4572

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description qalkscyj "wifi internet conection"
2⤵
- Launches sc.exe
PID:2700

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start qalkscyj
2⤵
- Launches sc.exe
PID:2768

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:4088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4452 -s 676
2⤵
- Program crash
PID:684

C:\Windows\SysWOW64\qalkscyj\gwzeinzw.exe
C:\Windows\SysWOW64\qalkscyj\gwzeinzw.exe /d"C:\Users\Admin\AppData\Local\Temp\f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1300

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:4464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1300 -s 540
2⤵
- Program crash
PID:4680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4452 -ip 4452
1⤵
PID:2972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 1300 -ip 1300
1⤵
PID:1248

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\gwzeinzw.exe
Filesize
13.7MB

MD5
2b2b4d9ad4229a6b46b10c1bd363c21f

SHA1
43b36273f0ba45d6a55c457bc2819b28c58cf7c9

SHA256
01d91fa40b2a1731235bd35770bc0955e70ee52d323d9bbbcbc5db4de61c5759

SHA512
d63a2a44e45654bbf69444a902854afeabca282876e81abf5242caa085c0255ae9a5ea0bd27fabeb7a2f3f94c0ad34fbc679726234bd099047e54970ee38601a

Download Submit
memory/1300-15-0x0000000000400000-0x0000000002BF6000-memory.dmp

Filesize
40.0MB

Download
memory/1300-10-0x0000000002C80000-0x0000000002D80000-memory.dmp

Filesize
1024KB

Download
memory/1300-18-0x0000000000400000-0x0000000002BF6000-memory.dmp

Filesize
40.0MB

Download
memory/4452-4-0x0000000000400000-0x0000000002BF6000-memory.dmp

Filesize
40.0MB

Download
memory/4452-2-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/4452-8-0x0000000000400000-0x0000000002BF6000-memory.dmp

Filesize
40.0MB

Download
memory/4452-9-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/4452-1-0x0000000002DA0000-0x0000000002EA0000-memory.dmp

Filesize
1024KB

Download
memory/4464-11-0x0000000000840000-0x0000000000855000-memory.dmp

Filesize
84KB

Download
memory/4464-14-0x0000000000840000-0x0000000000855000-memory.dmp

Filesize
84KB

Download
memory/4464-16-0x0000000000840000-0x0000000000855000-memory.dmp

Filesize
84KB

Download
memory/4464-17-0x0000000000840000-0x0000000000855000-memory.dmp

Filesize
84KB

Download
memory/4464-19-0x0000000000840000-0x0000000000855000-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