tofsee | 69b07662024f000cf1fb480d083e4def873b45981f9c82d3230ce9a0265addc2

General

Target

dfb88b02f63ed6cdab5e891ea96d0b33_JaffaCakes118.exe
Size

273KB
MD5

dfb88b02f63ed6cdab5e891ea96d0b33
SHA1

6fb1de517d54d48ac4e3b60256532c667be07b59
SHA256

69b07662024f000cf1fb480d083e4def873b45981f9c82d3230ce9a0265addc2
SHA512

608d8a9435c557ec4b2184104fff137b5f24180a0d61868f9ee8872fed1fde8c2741788b7761190e848764fa231d18c7fbd861f7dabd6e119513fa6401f3e922
SSDEEP

3072:ydC8qbyTR4lccnGEaORCLFWkA1uVi9XuP7+aCTUlW5BywfzEFFUyrhw4Xl:KgC4lcQ/luFcuc1ijHlsywfzgUyFw

Score

10^/10

tofsee discovery persistence trojan

Malware Config

Extracted

Family

tofsee

C2

91.218.38.245

188.165.132.183

rgtryhbgddtyh.biz

wertdghbyrukl.ch

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Deletes itself 1 IoCs

pid	Process
2312	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2724	goqi.exe

Loads dropped DLL 2 IoCs

pid	Process
1724	dfb88b02f63ed6cdab5e891ea96d0b33_JaffaCakes118.exe
1724	dfb88b02f63ed6cdab5e891ea96d0b33_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\goqi.exe\""	dfb88b02f63ed6cdab5e891ea96d0b33_JaffaCakes118.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum	dfb88b02f63ed6cdab5e891ea96d0b33_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	dfb88b02f63ed6cdab5e891ea96d0b33_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum	goqi.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	goqi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2724 set thread context of 2604	2724	goqi.exe	34

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dfb88b02f63ed6cdab5e891ea96d0b33_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	goqi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 2724	1724	dfb88b02f63ed6cdab5e891ea96d0b33_JaffaCakes118.exe	31
PID 1724 wrote to memory of 2724	1724	dfb88b02f63ed6cdab5e891ea96d0b33_JaffaCakes118.exe	31
PID 1724 wrote to memory of 2724	1724	dfb88b02f63ed6cdab5e891ea96d0b33_JaffaCakes118.exe	31
PID 1724 wrote to memory of 2724	1724	dfb88b02f63ed6cdab5e891ea96d0b33_JaffaCakes118.exe	31
PID 1724 wrote to memory of 2312	1724	dfb88b02f63ed6cdab5e891ea96d0b33_JaffaCakes118.exe	32
PID 1724 wrote to memory of 2312	1724	dfb88b02f63ed6cdab5e891ea96d0b33_JaffaCakes118.exe	32
PID 1724 wrote to memory of 2312	1724	dfb88b02f63ed6cdab5e891ea96d0b33_JaffaCakes118.exe	32
PID 1724 wrote to memory of 2312	1724	dfb88b02f63ed6cdab5e891ea96d0b33_JaffaCakes118.exe	32
PID 2724 wrote to memory of 2604	2724	goqi.exe	34
PID 2724 wrote to memory of 2604	2724	goqi.exe	34
PID 2724 wrote to memory of 2604	2724	goqi.exe	34
PID 2724 wrote to memory of 2604	2724	goqi.exe	34
PID 2724 wrote to memory of 2604	2724	goqi.exe	34
PID 2724 wrote to memory of 2604	2724	goqi.exe	34

C:\Users\Admin\AppData\Local\Temp\dfb88b02f63ed6cdab5e891ea96d0b33_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dfb88b02f63ed6cdab5e891ea96d0b33_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Users\Admin\goqi.exe
  "C:\Users\Admin\goqi.exe"
  2⤵
  - Executes dropped EXE
  - Maps connected drives based on registry
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2724
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2604
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\2228.bat" "
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2312

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

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\2228.bat

Filesize
266B

MD5
18354811289367ad8a5086848a3ae639

SHA1
5bdd2f994225dd7e5044e8dfc7ef36b0ef126e73

SHA256
0b7284bbb7e894c7bf0a86ab16f24625cee48d99be304aae7baa488cdc8616d4

SHA512
62158cafbd626627d1d2069d10049f347d41adb2d44a58dd88c9c0d49a3d9d5c64f3610e618e36ae079fea11b1f575390719a8966660795feaff69861451f7b2

Download Submit
C:\Users\Admin\goqi.exe

Filesize
273KB

MD5
dfb88b02f63ed6cdab5e891ea96d0b33

SHA1
6fb1de517d54d48ac4e3b60256532c667be07b59

SHA256
69b07662024f000cf1fb480d083e4def873b45981f9c82d3230ce9a0265addc2

SHA512
608d8a9435c557ec4b2184104fff137b5f24180a0d61868f9ee8872fed1fde8c2741788b7761190e848764fa231d18c7fbd861f7dabd6e119513fa6401f3e922

Download Submit
memory/1724-0-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/1724-1-0x0000000002690000-0x0000000002691000-memory.dmp

Filesize
4KB

Download
memory/1724-2-0x0000000000407000-0x0000000000408000-memory.dmp

Filesize
4KB

Download
memory/1724-4-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/1724-15-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/1724-7-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/1724-24-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2604-29-0x0000000000080000-0x0000000000091000-memory.dmp

Filesize
68KB

Download
memory/2604-32-0x0000000000080000-0x0000000000091000-memory.dmp

Filesize
68KB

Download
memory/2604-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2604-41-0x0000000000080000-0x0000000000091000-memory.dmp

Filesize
68KB

Download
memory/2604-42-0x0000000000190000-0x0000000000191000-memory.dmp

Filesize
4KB

Download
memory/2604-44-0x0000000000080000-0x0000000000091000-memory.dmp

Filesize
68KB

Download
memory/2604-45-0x0000000000080000-0x0000000000091000-memory.dmp

Filesize
68KB

Download
memory/2724-27-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2724-26-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2724-33-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2724-28-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads