tofsee | 1cfae1204e52198353fa94fd41d6d3496a316735d98f334eb300becdd837d90d

General

Target

fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe
Size

13.5MB
MD5

fdf33bcaac18604051afb04b0b52416f
SHA1

3a125b929ebaea43caf9700fa589d2329e38d019
SHA256

1cfae1204e52198353fa94fd41d6d3496a316735d98f334eb300becdd837d90d
SHA512

bd26dcdfcaa2d61498610613d5e8ca67699f234db3b906a6c982e957474c315e5cff30f9701692c0746eb8d0fab336f9f5a14cb3ffe21569004283599aad75f5
SSDEEP

6144:m2BxZXDsssssssssssssssssssssssssssssssssssssssssssssssssssssssss:m4V

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\rqvbfyl = "0"	svchost.exe

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

3036 netsh.exe

pid	process
3036	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\rqvbfyl\ImagePath = "C:\\Windows\\SysWOW64\\rqvbfyl\\hgsotdna.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2596 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

hgsotdna.exe

pid process

2564 hgsotdna.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

hgsotdna.exe

description pid process target process

PID 2564 set thread context of 2596 2564 hgsotdna.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

2204 sc.exe
2648 sc.exe
2592 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2596	svchost.exe

pid	process
2564	hgsotdna.exe

description	pid	process	target process
PID 2564 set thread context of 2596	2564	hgsotdna.exe	svchost.exe

pid	process
2204	sc.exe
2648	sc.exe
2592	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exehgsotdna.exe

description	pid	process	target process
PID 1704 wrote to memory of 2008	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	cmd.exe
PID 1704 wrote to memory of 2008	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	cmd.exe
PID 1704 wrote to memory of 2008	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	cmd.exe
PID 1704 wrote to memory of 2008	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	cmd.exe
PID 1704 wrote to memory of 2216	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	cmd.exe
PID 1704 wrote to memory of 2216	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	cmd.exe
PID 1704 wrote to memory of 2216	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	cmd.exe
PID 1704 wrote to memory of 2216	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	cmd.exe
PID 1704 wrote to memory of 2204	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2204	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2204	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2204	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2648	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2648	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2648	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2648	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2592	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2592	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2592	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2592	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	sc.exe
PID 2564 wrote to memory of 2596	2564	hgsotdna.exe	svchost.exe
PID 2564 wrote to memory of 2596	2564	hgsotdna.exe	svchost.exe
PID 2564 wrote to memory of 2596	2564	hgsotdna.exe	svchost.exe
PID 2564 wrote to memory of 2596	2564	hgsotdna.exe	svchost.exe
PID 2564 wrote to memory of 2596	2564	hgsotdna.exe	svchost.exe
PID 2564 wrote to memory of 2596	2564	hgsotdna.exe	svchost.exe
PID 1704 wrote to memory of 3036	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	netsh.exe
PID 1704 wrote to memory of 3036	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	netsh.exe
PID 1704 wrote to memory of 3036	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	netsh.exe
PID 1704 wrote to memory of 3036	1704	fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1704

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rqvbfyl\
2⤵
PID:2008

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hgsotdna.exe" C:\Windows\SysWOW64\rqvbfyl\
2⤵
PID:2216

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create rqvbfyl binPath= "C:\Windows\SysWOW64\rqvbfyl\hgsotdna.exe /d\"C:\Users\Admin\AppData\Local\Temp\fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2204

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description rqvbfyl "wifi internet conection"
2⤵
- Launches sc.exe
PID:2648

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start rqvbfyl
2⤵
- Launches sc.exe
PID:2592

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:3036

C:\Windows\SysWOW64\rqvbfyl\hgsotdna.exe
C:\Windows\SysWOW64\rqvbfyl\hgsotdna.exe /d"C:\Users\Admin\AppData\Local\Temp\fdf33bcaac18604051afb04b0b52416f_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2564

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2596

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

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\hgsotdna.exe

Filesize
11.6MB

MD5
28731e8c4d4cb8c1ce1906d41a99c247

SHA1
729f68742b84889ec17e2ce4b6ef80f1853b8eca

SHA256
8305581e46d712985caedf8adab7a41596f0c8978ef307b136cb84b72a0fd5d2

SHA512
8ea4d3cfe2e78c4f6423cf9614e62f5514eae09ef600f05b6937f4f443affd24a4d55ef0c16af13171d88a25105834fffb5c97dfa8653ff5b57bfb4f82233447

Download Submit
memory/1704-2-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1704-1-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1704-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/1704-14-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2564-11-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2596-7-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2596-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2596-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2596-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2596-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2596-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2596-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads