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

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\isompuyg = "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

2568 netsh.exe

pid	process
2568	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\isompuyg\ImagePath = "C:\\Windows\\SysWOW64\\isompuyg\\sjziollo.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2832 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

sjziollo.exe

pid process

2712 sjziollo.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

sjziollo.exe

description pid process target process

PID 2712 set thread context of 2832 2712 sjziollo.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

2536 sc.exe
2756 sc.exe
2416 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2832	svchost.exe

pid	process
2712	sjziollo.exe

description	pid	process	target process
PID 2712 set thread context of 2832	2712	sjziollo.exe	svchost.exe

pid	process
2536	sc.exe
2756	sc.exe
2416	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exesjziollo.exe

description	pid	process	target process
PID 2068 wrote to memory of 2696	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	cmd.exe
PID 2068 wrote to memory of 2696	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	cmd.exe
PID 2068 wrote to memory of 2696	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	cmd.exe
PID 2068 wrote to memory of 2696	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	cmd.exe
PID 2068 wrote to memory of 2264	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	cmd.exe
PID 2068 wrote to memory of 2264	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	cmd.exe
PID 2068 wrote to memory of 2264	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	cmd.exe
PID 2068 wrote to memory of 2264	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	cmd.exe
PID 2068 wrote to memory of 2536	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 2068 wrote to memory of 2536	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 2068 wrote to memory of 2536	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 2068 wrote to memory of 2536	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 2068 wrote to memory of 2756	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 2068 wrote to memory of 2756	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 2068 wrote to memory of 2756	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 2068 wrote to memory of 2756	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 2068 wrote to memory of 2416	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 2068 wrote to memory of 2416	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 2068 wrote to memory of 2416	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 2068 wrote to memory of 2416	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	sc.exe
PID 2068 wrote to memory of 2568	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	netsh.exe
PID 2068 wrote to memory of 2568	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	netsh.exe
PID 2068 wrote to memory of 2568	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	netsh.exe
PID 2068 wrote to memory of 2568	2068	f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe	netsh.exe
PID 2712 wrote to memory of 2832	2712	sjziollo.exe	svchost.exe
PID 2712 wrote to memory of 2832	2712	sjziollo.exe	svchost.exe
PID 2712 wrote to memory of 2832	2712	sjziollo.exe	svchost.exe
PID 2712 wrote to memory of 2832	2712	sjziollo.exe	svchost.exe
PID 2712 wrote to memory of 2832	2712	sjziollo.exe	svchost.exe
PID 2712 wrote to memory of 2832	2712	sjziollo.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2068

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\isompuyg\
2⤵
PID:2696

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sjziollo.exe" C:\Windows\SysWOW64\isompuyg\
2⤵
PID:2264

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create isompuyg binPath= "C:\Windows\SysWOW64\isompuyg\sjziollo.exe /d\"C:\Users\Admin\AppData\Local\Temp\f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2536

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description isompuyg "wifi internet conection"
2⤵
- Launches sc.exe
PID:2756

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start isompuyg
2⤵
- Launches sc.exe
PID:2416

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:2568

C:\Windows\SysWOW64\isompuyg\sjziollo.exe
C:\Windows\SysWOW64\isompuyg\sjziollo.exe /d"C:\Users\Admin\AppData\Local\Temp\f56ce0db616131aab23985d13dfd55f4_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2712

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2832

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

2

T1562

Disable or Modify Tools

1

T1562.001

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\sjziollo.exe
Filesize
6.6MB

MD5
ff8acbd57bcf17d01b44e9e2636a7190

SHA1
14e12c1b25d2a032d15c93075380aa67e84561f1

SHA256
8e34b79e0bff05a0e4d12145f921fcb1d82e8ad7ae557ae38bd5e8b6e55e2b4f

SHA512
49a704b31bdab0668dc00293842a141ac88f69d0726e01e363d05194d45bb007b85b65121e988e79e7001af31753f140f592bb3357613f6154d060ac2c8f04cb

Download Submit
C:\Windows\SysWOW64\isompuyg\sjziollo.exe
Filesize
7.6MB

MD5
e7a20115c40aa0dd5f212543bbe103f5

SHA1
4709bbac04f2e8cbcc9e164aef04955949dce676

SHA256
26441d98a560d83fea211e2a7062ac6855a92433843207e9306a237d867571b4

SHA512
953db34054045de45d0daaba436dc7e961ec6ed8992d227f8802550911d249762cd22ba6c2aadb75f7f173ba9d80432458f5be1e92016a007c2b0d3c37fe8710

Download Submit
memory/2068-4-0x0000000000400000-0x0000000002BF6000-memory.dmp

Filesize
40.0MB

Download
memory/2068-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2068-1-0x0000000002D90000-0x0000000002E90000-memory.dmp

Filesize
1024KB

Download
memory/2068-6-0x0000000000400000-0x0000000002BF6000-memory.dmp

Filesize
40.0MB

Download
memory/2712-9-0x0000000000400000-0x0000000002BF6000-memory.dmp

Filesize
40.0MB

Download
memory/2712-16-0x0000000002C80000-0x0000000002D80000-memory.dmp

Filesize
1024KB

Download
memory/2712-19-0x0000000000400000-0x0000000002BF6000-memory.dmp

Filesize
40.0MB

Download
memory/2832-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2832-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2832-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2832-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2832-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2832-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2832-22-0x0000000000080000-0x0000000000095000-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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