Analysis
- max time kernel
149s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
23/04/2026, 04:27
Static task
static1
Behavioral task
behavioral1
Sample
2026-04-23_322aa6d0bf8745098e54d2744e7dc767_amadey_cobalt-strike_elex_luca-stealer_njrat_smoke-loader.exe
Resource
win10v2004-20260130-en
General
- Target 2026-04-23_322aa6d0bf8745098e54d2744e7dc767_amadey_cobalt-strike_elex_luca-stealer_njrat_smoke-loader.exe
- Size 635KB
- Sample260423-e3dwdsax8y
- SHA256 2e2d5e6b1bf9efe879eac8b0e869e78383a1657be0d800d7720436d250fcc957
- MD5 322aa6d0bf8745098e54d2744e7dc767
- SHA1 9f91edef7b2eaa964993bae388647739453d5018
- SHA512 669ddddc1df2ce136438ae9e8a0a37efed4f100e24137032afdeec8a734adfc64216accddb5894aaee15476a191905f2fc131bd0c65e87d01211d8eada928395
- SSDEEP 12288:6kc3MbnmNpWAXCe/FH0H/WuJKC0gJmxZ7FXrPy4ix+LBltsgK7zXIqbkk:6wbmTzyewXJWZ7V+4s+PtY/XIq3
- TLSH T170D4B012F2D2C073D4B7053006AA9B369EBEBE20073589D757D40E5DAE712D2EA3A717
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
Protocol
smtp
-
Host
smtp.sendgrid.net
-
Port
587
-
Username
apikey
-
Password
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
Signatures
- Detected Nirsoft tools 2 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
resource yara_rule behavioral1/memory/3104-0-0x00000000000B0000-0x0000000000156000-memory.dmp Nirsoft behavioral1/files/0x00090000000241c7-5.dat Nirsoft - NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral1/memory/3104-0-0x00000000000B0000-0x0000000000156000-memory.dmp WebBrowserPassView behavioral1/files/0x00090000000241c7-5.dat WebBrowserPassView - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-745935970-1373868228-562466063-1000\Control Panel\International\Geo\Nation 2026-04-23_322aa6d0bf8745098e54d2744e7dc767_amadey_cobalt-strike_elex_luca-stealer_njrat_smoke-loader.exe - Executes dropped EXE 2 IoCs
pid Process 2328 App.exe 552 App.exe - Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 5 icanhazip.com - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 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 2026-04-23_322aa6d0bf8745098e54d2744e7dc767_amadey_cobalt-strike_elex_luca-stealer_njrat_smoke-loader.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language App.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language App.exe - Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2328 App.exe 2328 App.exe 552 App.exe 552 App.exe 552 App.exe 552 App.exe 2328 App.exe 2328 App.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3104 2026-04-23_322aa6d0bf8745098e54d2744e7dc767_amadey_cobalt-strike_elex_luca-stealer_njrat_smoke-loader.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3104 wrote to memory of 2328 3104 2026-04-23_322aa6d0bf8745098e54d2744e7dc767_amadey_cobalt-strike_elex_luca-stealer_njrat_smoke-loader.exe 88 PID 3104 wrote to memory of 552 3104 2026-04-23_322aa6d0bf8745098e54d2744e7dc767_amadey_cobalt-strike_elex_luca-stealer_njrat_smoke-loader.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-23_322aa6d0bf8745098e54d2744e7dc767_amadey_cobalt-strike_elex_luca-stealer_njrat_smoke-loader.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-23_322aa6d0bf8745098e54d2744e7dc767_amadey_cobalt-strike_elex_luca-stealer_njrat_smoke-loader.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3104 -
C:\Users\Admin\AppData\Roaming\Explorer\App.exe"C:\Users\Admin\AppData\Roaming\Explorer\App.exe" -B /stext C:\Users\Admin\AppData\Roaming/Explorer/Output.txt2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2328
-
-
C:\Users\Admin\AppData\Roaming\Explorer\App.exe"C:\Users\Admin\AppData\Roaming\Explorer\App.exe" -B /stext C:\Users\Admin\AppData\Roaming/Explorer/Output.txt2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:552
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\Explorer\App.exe
- Size 391KB
- SHA256 f999357a17e672e87fbed66d14ba2bebd6fb04e058a1aae0f0fdc49a797f58fe
- MD5 053778713819beab3df309df472787cd
- SHA1 99c7b5827df89b4fafc2b565abed97c58a3c65b8
- SHA512 35a00001c718e36e956f49879e453f18f5d6c66bbc6a3e1aad6d5dd1109904539b173c3cad0009bc021d4513a67ae0003282f7d14b7aecaa20e59a22c6ad0ddb
- SSDEEP 6144:wE+Z7EAXrvPRIxK0zBL/TIDC2dL3RltnfoBglM7zMUdsvk3zhAt76zkizX5:QZ7FXrPy4ix+LBltsgK7zXIqbkk5
- TLSH T1E084AE03F3D28076E8A70570066B5B36DEFABE201635895757D41C89BEB16D2EA3E307
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\Explorer\Output.txt
- Size 4KB
- SHA256 9ef99983752a54c7f699f181d52e21509cd961622e7f835a3ca680fabb530af2
- MD5 97cc7ce73d6f07afb0f07c867a615932
- SHA1 ec37e320a66e036742d8aefca4b29f34c78ba335
- SHA512 23d3b6b7ff165a62f94565afb951911670f5d65a104c4dd9418f45e30890bb8b0e066cd5ad4b739e44e6837fa288437b4f007610a0353e2344886716dc197328
- SSDEEP 48:wvvv0bxfvvcbxfdvv0bxBvv0bxakvv0b7:mv2xv+p1v2Pv2bv27
- TLSH T182914A4716E90408F0B6BA46D97B15B65B7338199CBC815C60DCA3D80BF3910EAE37D7
- MD5 SHA1 SHA512 SSDEEP TLSH