tofsee | ae5169a9295d294594533c5cce04ff557eddeea30963e2eb81f5df6cdb6304cd

Analysis

max time kernel
95s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/09/2024, 16:32

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General

Target

edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe
Size

212KB
MD5

edfdef59f92fee006518e57f2f8f01b8
SHA1

3b8065cd942b517b402af0cc93f41c0dfdd5dd15
SHA256

ae5169a9295d294594533c5cce04ff557eddeea30963e2eb81f5df6cdb6304cd
SHA512

f3b78c90f28047c6a8ac97a25fce50a002b718b451eb5c66edf39cd4a510dd3d95f652a1839b3c41d07033e00ca6d76ec41d2b6b01532430c6d80cbfbd62ff07
SSDEEP

3072:3d09mZ3vD7RpNh8xvv5z2LizudUfgF8qNO5GM5aEADQbkt/KyJh045Fmxb5k6Toc:3d09mVr7RLh8p5z2OCdULWvDTJle98c

Score

10^/10

tofsee discovery persistence trojan

Malware Config

Extracted

Family

tofsee

94.75.255.140

rgtryhbgddtyh.biz

wertdghbyrukl.ch

Signatures

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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
3588	duvlieg.exe
4680	duvlieg.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-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\duvlieg.exe\" /r"	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2724 set thread context of 3112	2724	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe	82
PID 3588 set thread context of 4680	3588	duvlieg.exe	84
PID 4680 set thread context of 404	4680	duvlieg.exe	85

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4928	404	WerFault.exe	85

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	duvlieg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	duvlieg.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
2724	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2724 wrote to memory of 3112	2724	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe	82
PID 2724 wrote to memory of 3112	2724	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe	82
PID 2724 wrote to memory of 3112	2724	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe	82
PID 2724 wrote to memory of 3112	2724	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe	82
PID 2724 wrote to memory of 3112	2724	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe	82
PID 2724 wrote to memory of 3112	2724	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe	82
PID 2724 wrote to memory of 3112	2724	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe	82
PID 2724 wrote to memory of 3112	2724	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe	82
PID 3112 wrote to memory of 3588	3112	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe	83
PID 3112 wrote to memory of 3588	3112	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe	83
PID 3112 wrote to memory of 3588	3112	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe	83
PID 3588 wrote to memory of 4680	3588	duvlieg.exe	84
PID 3588 wrote to memory of 4680	3588	duvlieg.exe	84
PID 3588 wrote to memory of 4680	3588	duvlieg.exe	84
PID 3588 wrote to memory of 4680	3588	duvlieg.exe	84
PID 3588 wrote to memory of 4680	3588	duvlieg.exe	84
PID 3588 wrote to memory of 4680	3588	duvlieg.exe	84
PID 3588 wrote to memory of 4680	3588	duvlieg.exe	84
PID 3588 wrote to memory of 4680	3588	duvlieg.exe	84
PID 4680 wrote to memory of 404	4680	duvlieg.exe	85
PID 4680 wrote to memory of 404	4680	duvlieg.exe	85
PID 4680 wrote to memory of 404	4680	duvlieg.exe	85
PID 4680 wrote to memory of 404	4680	duvlieg.exe	85
PID 4680 wrote to memory of 404	4680	duvlieg.exe	85
PID 3112 wrote to memory of 1400	3112	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe	88
PID 3112 wrote to memory of 1400	3112	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe	88
PID 3112 wrote to memory of 1400	3112	edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe	88

C:\Users\Admin\AppData\Local\Temp\edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2724
- C:\Users\Admin\AppData\Local\Temp\edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\edfdef59f92fee006518e57f2f8f01b8_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3112
- - C:\Users\Admin\duvlieg.exe
    "C:\Users\Admin\duvlieg.exe" /r
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3588
  - - C:\Users\Admin\duvlieg.exe
      "C:\Users\Admin\duvlieg.exe" /r
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4680
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:404
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 404 -s 212
        6⤵
        Program crash
        
        PID:4928
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\8232.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 404 -ip 404
1⤵
PID:4432

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\8232.bat

Filesize
117B

MD5
8e1385d471972c513b646b1afe8b9f04

SHA1
6777cb18728eccc0fea95f85923690acc5ba7ad7

SHA256
48f71c9f5df68a300d6dcffbfbf06eefc0c7cdaadddfcaf6b49c1a7bcff50749

SHA512
389044bf2e4762a0d1db821e66e2c77f8451c52050111df8bac7621c0c19b01778df1192c662c6cf03c6f9b8a7311b43551e7dff16997b8e6f4cf2a0060e4b1f

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

Filesize
212KB

MD5
edfdef59f92fee006518e57f2f8f01b8

SHA1
3b8065cd942b517b402af0cc93f41c0dfdd5dd15

SHA256
ae5169a9295d294594533c5cce04ff557eddeea30963e2eb81f5df6cdb6304cd

SHA512
f3b78c90f28047c6a8ac97a25fce50a002b718b451eb5c66edf39cd4a510dd3d95f652a1839b3c41d07033e00ca6d76ec41d2b6b01532430c6d80cbfbd62ff07

Download Submit
memory/404-13-0x0000000000880000-0x0000000000890000-memory.dmp

Filesize
64KB

Download
memory/404-18-0x0000000000880000-0x0000000000890000-memory.dmp

Filesize
64KB

Download
memory/404-26-0x0000000000880000-0x0000000000890000-memory.dmp

Filesize
64KB

Download
memory/404-27-0x0000000002800000-0x0000000002801000-memory.dmp

Filesize
4KB

Download
memory/404-28-0x0000000000880000-0x0000000000890000-memory.dmp

Filesize
64KB

Download
memory/404-29-0x0000000000880000-0x0000000000890000-memory.dmp

Filesize
64KB

Download
memory/3112-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3112-2-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3112-23-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/4680-12-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads