Overview
overview
8Static
static
3Kivun_Term...up.exe
windows10-2004-x64
7Kivun_Term...up.exe
windows11-ltsc_2024-x64
7$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows11-ltsc_2024-x64
3$PLUGINSDI...gs.dll
windows10-2004-x64
3$PLUGINSDI...gs.dll
windows11-ltsc_2024-x64
3$PLUGINSDI...ec.dll
windows10-2004-x64
3$PLUGINSDI...ec.dll
windows11-ltsc_2024-x64
3KivunTerminal.exe
windows10-2004-x64
8KivunTerminal.exe
windows11-ltsc_2024-x64
8configure-...ine.js
windows10-2004-x64
3configure-...ine.js
windows11-ltsc_2024-x64
3folder-picker.hta
windows10-2004-x64
8folder-picker.hta
windows11-ltsc_2024-x64
8folder-picker.wsf
windows10-2004-x64
3folder-picker.wsf
windows11-ltsc_2024-x64
8kivun-clau...e-bidi
ubuntu-18.04-amd64
1kivun-clau...e-bidi
debian-9-armhf
1kivun-clau...e-bidi
debian-9-mips
kivun-clau...e-bidi
debian-9-mipsel
kivun-clau...eck.js
windows10-2004-x64
3kivun-clau...eck.js
windows11-ltsc_2024-x64
3kivun-clau...nal.js
windows10-2004-x64
3kivun-clau...nal.js
windows11-ltsc_2024-x64
3kivun-clau...tor.js
windows10-2004-x64
3kivun-clau...tor.js
windows11-ltsc_2024-x64
3kivun-clau...bin.js
windows10-2004-x64
3kivun-clau...bin.js
windows11-ltsc_2024-x64
3kivun-clau...tor.js
windows10-2004-x64
3kivun-clau...tor.js
windows11-ltsc_2024-x64
3kivun-clau...tor.js
windows10-2004-x64
3kivun-clau...tor.js
windows11-ltsc_2024-x64
3Analysis
- max time kernel
148s - max time network
121s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/07/2026, 02:11
Static task
static1
Behavioral task
behavioral1
Sample
Kivun_Terminal_Setup.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
Kivun_Terminal_Setup.exe
Resource
win11ltsc2024-20260629-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win11ltsc2024-20260629-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11ltsc2024-20260630-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11ltsc2024-20260629-en
Behavioral task
behavioral9
Sample
KivunTerminal.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral10
Sample
KivunTerminal.exe
Resource
win11ltsc2024-20260629-en
Behavioral task
behavioral11
Sample
configure-statusline.js
Resource
win10v2004-20260513-en
Behavioral task
behavioral12
Sample
configure-statusline.js
Resource
win11ltsc2024-20260629-en
Behavioral task
behavioral13
Sample
folder-picker.hta
Resource
win10v2004-20260513-en
Behavioral task
behavioral14
Sample
folder-picker.hta
Resource
win11ltsc2024-20260629-en
Behavioral task
behavioral15
Sample
folder-picker.wsf
Resource
win10v2004-20260513-en
Behavioral task
behavioral16
Sample
folder-picker.wsf
Resource
win11ltsc2024-20260629-en
Behavioral task
behavioral17
Sample
kivun-claude-bidi/bin/kivun-claude-bidi
Resource
ubuntu1804-amd64-20260513-en
Behavioral task
behavioral18
Sample
kivun-claude-bidi/bin/kivun-claude-bidi
Resource
debian9-armhf-20260513-en
Behavioral task
behavioral19
Sample
kivun-claude-bidi/bin/kivun-claude-bidi
Resource
debian9-mipsbe-20260513-en
Behavioral task
behavioral20
Sample
kivun-claude-bidi/bin/kivun-claude-bidi
Resource
debian9-mipsel-20260513-en
Behavioral task
behavioral21
Sample
kivun-claude-bidi/lib/capability-check.js
Resource
win10v2004-20260513-en
Behavioral task
behavioral22
Sample
kivun-claude-bidi/lib/capability-check.js
Resource
win11ltsc2024-20260629-en
Behavioral task
behavioral23
Sample
kivun-claude-bidi/lib/detect-terminal.js
Resource
win10v2004-20260513-en
Behavioral task
behavioral24
Sample
kivun-claude-bidi/lib/detect-terminal.js
Resource
win11ltsc2024-20260629-en
Behavioral task
behavioral25
Sample
kivun-claude-bidi/lib/injector.js
Resource
win10v2004-20260513-en
Behavioral task
behavioral26
Sample
kivun-claude-bidi/lib/injector.js
Resource
win11ltsc2024-20260630-en
Behavioral task
behavioral27
Sample
kivun-claude-bidi/lib/resolve-claude-bin.js
Resource
win10v2004-20260513-en
Behavioral task
behavioral28
Sample
kivun-claude-bidi/lib/resolve-claude-bin.js
Resource
win11ltsc2024-20260629-en
Behavioral task
behavioral29
Sample
kivun-claude-bidi/lib/rtl-cost-optimizer/detector.js
Resource
win10v2004-20260513-en
Behavioral task
behavioral30
Sample
kivun-claude-bidi/lib/rtl-cost-optimizer/detector.js
Resource
win11ltsc2024-20260630-en
Behavioral task
behavioral31
Sample
kivun-claude-bidi/lib/rtl-cost-optimizer/estimator.js
Resource
win10v2004-20260513-en
Behavioral task
behavioral32
Sample
kivun-claude-bidi/lib/rtl-cost-optimizer/estimator.js
Resource
win11ltsc2024-20260629-en
General
- Target $PLUGINSDIR/nsExec.dll
- Size 7KB
- Sample260702-cmcmaaa141
- SHA256 3a101fa91d4e8831dfb748a1e345ab74fd4a551e64254710bdf53972ba9b473c
- MD5 c953dd0aab774f1446fcd63fa7c5f613
- SHA1 6b7e1ef30b3ce2b353d310a8c99111c01e1f752e
- SHA512 7fdfc451ada1789ad44a33fee7a97acf9f482ae58b5207564ce8ac90fbc8b0fc891bc02d8c1d9a1d0d3fb77954106115582080e129bb93634a2cb16777201e14
- SSDEEP 96:JbzdzBzMDhOZZDbXf5GsWvSv1ckne94SDbYkvML1HT1fUNQaSGYuHwDQ:JEQHDb2vSuOc41ZfUNQZGdHo
- TLSH T15EE1093571C02DF7D08D897438167D2F83F4D52627BA05A046771AD579D0AF6EE28B42
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 1500 1832 WerFault.exe 88 - System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3104 wrote to memory of 1832 3104 rundll32.exe 88
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3104 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:1832 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1832 -s 5243⤵
- Program crash
PID:1500
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1832 -ip 18321⤵PID:3832