tofsee | 26128830cb8a15abdbc9b22a6a1aaece6bb8c2a13abc1103611fec4d867629b6

Analysis

max time kernel
142s
max time network
120s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
03-01-2025 20:00

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe
Size

152KB
MD5

6f352302073de0e2bfe05dbfb220d074
SHA1

c36f3014baf28b7667612752e025cf138b448f55
SHA256

26128830cb8a15abdbc9b22a6a1aaece6bb8c2a13abc1103611fec4d867629b6
SHA512

5a9af4c6682a681732ec8c603bf146ce86d7cc698dfdde744245156c887399d65bc38d2bd4ac2075ed86088a4539c2f252a337abd04ce7beb71d8913e8208677
SSDEEP

1536:oqJVtDbTMSjRZqsAONjZmZ9wkPGdkD8Vyzt/86My6n27InSJd:okTMNINjZBNkwmt/Ksd

Score

10^/10

tofsee discovery persistence trojan

Malware Config

Extracted

Family

tofsee

103.9.150.244

188.190.120.102

121.127.250.203

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
2748	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2668	stljjdvi.exe
532	stljjdvi.exe

Loads dropped DLL 3 IoCs

pid	Process
2760	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe
2760	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe
2668	stljjdvi.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\stljjdvi.exe\""	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2876 set thread context of 2760	2876	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	30
PID 2668 set thread context of 532	2668	stljjdvi.exe	34
PID 532 set thread context of 1852	532	stljjdvi.exe	35

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 6 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	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	stljjdvi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	stljjdvi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2876	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe
2668	stljjdvi.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2876 wrote to memory of 2760	2876	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	30
PID 2876 wrote to memory of 2760	2876	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	30
PID 2876 wrote to memory of 2760	2876	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	30
PID 2876 wrote to memory of 2760	2876	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	30
PID 2876 wrote to memory of 2760	2876	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	30
PID 2876 wrote to memory of 2760	2876	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	30
PID 2876 wrote to memory of 2760	2876	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	30
PID 2876 wrote to memory of 2760	2876	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	30
PID 2876 wrote to memory of 2760	2876	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	30
PID 2876 wrote to memory of 2760	2876	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	30
PID 2760 wrote to memory of 2668	2760	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	31
PID 2760 wrote to memory of 2668	2760	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	31
PID 2760 wrote to memory of 2668	2760	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	31
PID 2760 wrote to memory of 2668	2760	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	31
PID 2760 wrote to memory of 2748	2760	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	32
PID 2760 wrote to memory of 2748	2760	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	32
PID 2760 wrote to memory of 2748	2760	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	32
PID 2760 wrote to memory of 2748	2760	JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe	32
PID 2668 wrote to memory of 532	2668	stljjdvi.exe	34
PID 2668 wrote to memory of 532	2668	stljjdvi.exe	34
PID 2668 wrote to memory of 532	2668	stljjdvi.exe	34
PID 2668 wrote to memory of 532	2668	stljjdvi.exe	34
PID 2668 wrote to memory of 532	2668	stljjdvi.exe	34
PID 2668 wrote to memory of 532	2668	stljjdvi.exe	34
PID 2668 wrote to memory of 532	2668	stljjdvi.exe	34
PID 2668 wrote to memory of 532	2668	stljjdvi.exe	34
PID 2668 wrote to memory of 532	2668	stljjdvi.exe	34
PID 2668 wrote to memory of 532	2668	stljjdvi.exe	34
PID 532 wrote to memory of 1852	532	stljjdvi.exe	35
PID 532 wrote to memory of 1852	532	stljjdvi.exe	35
PID 532 wrote to memory of 1852	532	stljjdvi.exe	35
PID 532 wrote to memory of 1852	532	stljjdvi.exe	35
PID 532 wrote to memory of 1852	532	stljjdvi.exe	35
PID 532 wrote to memory of 1852	532	stljjdvi.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f352302073de0e2bfe05dbfb220d074.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2760
- - C:\Users\Admin\stljjdvi.exe
    "C:\Users\Admin\stljjdvi.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2668
  - - C:\Users\Admin\stljjdvi.exe
      "C:\Users\Admin\stljjdvi.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:532
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:1852
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\2407.bat" "
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\2407.bat

Filesize
266B

MD5
455baee54dba3722030d374b9d8a9112

SHA1
53890ee7936212def2252ef38e4f7e60cf9f44b4

SHA256
ac2cc3c91e4b0e00a5a2dc1a117c1c5003f3ee921b87a6ac59e338c750289bbf

SHA512
d215619489e2e86480ff56d0b70f1078ee991059f2c16196cc6d364971cd10a01c38497914d3020b88683bfb9691a354c99866fd5fbd4dd84e91969913d1fac9

Download Submit
\Users\Admin\stljjdvi.exe

Filesize
36.9MB

MD5
2ef6e50d09e574bebebada536d94c90b

SHA1
66918800a8edca4734edf3686dd0e28b6136cf5f

SHA256
cff74e8c285512957f588c94d2c7f7acafe6ba35a38e2fbb0d64402e694a8fa4

SHA512
74fdb91a9e9420b1892951ea70d07613220f85d961721903224dc664e00db1515fe6f961371063dfea478abc3b34e860081c7455cfff9b24ed90bf3b8b0f0ec4

Download Submit
memory/532-61-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/532-62-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/532-73-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1852-69-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/1852-76-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/1852-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1852-66-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/1852-68-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2668-32-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2668-59-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2760-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-10-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-16-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-40-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-6-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-20-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-19-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-12-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-4-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2876-18-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2876-2-0x0000000000406000-0x0000000000407000-memory.dmp

Filesize
4KB

Download
memory/2876-3-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads