Analysis
- max time kernel
145s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
07/03/2024, 12:56
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
b8c800c5a22fbeeb183eecb3b5759470.exe
Resource
win7-20240221-en
11 signatures
150 seconds
General
- Target b8c800c5a22fbeeb183eecb3b5759470.exe
- Size 180KB
- Sample240307-p6bkjsce5v
- SHA256 8e6d2164679243b757ed0a1610e399db7b5b24bcba098926e67f3a49c51fcde7
- MD5 b8c800c5a22fbeeb183eecb3b5759470
- SHA1 7eae8e51e36841240c390846c9c1b06df00b6c81
- SHA512 c5f138c64f49f1af9349abd36e2d8076c68e6dd92001606d3deec4446dbfea2863bd3418552e931b3b86d7436a428d33650131b7378776f2418f7ed016b94cbb
- SSDEEP 3072:6Oi3d9hdevZs0QQRGxXBI064TOadCj7XP3tLvsAeqv9hwO5V:grMExixDXXFLkAFhh5V
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Ardamax main executable 1 IoCs
resource yara_rule behavioral2/files/0x000700000002321b-12.dat family_ardamax - 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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation b8c800c5a22fbeeb183eecb3b5759470.exe - Executes dropped EXE 1 IoCs
pid Process 4696 NSK.exe - Loads dropped DLL 4 IoCs
pid Process 4764 b8c800c5a22fbeeb183eecb3b5759470.exe 4696 NSK.exe 4696 NSK.exe 4696 NSK.exe - Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\SysWOW64\NSK.001 b8c800c5a22fbeeb183eecb3b5759470.exe File created C:\Windows\SysWOW64\NSK.006 b8c800c5a22fbeeb183eecb3b5759470.exe File created C:\Windows\SysWOW64\NSK.007 b8c800c5a22fbeeb183eecb3b5759470.exe File created C:\Windows\SysWOW64\NSK.exe b8c800c5a22fbeeb183eecb3b5759470.exe - Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64 NSK.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: 33 4696 NSK.exe Token: SeIncBasePriorityPrivilege 4696 NSK.exe - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 4696 NSK.exe 4696 NSK.exe 4696 NSK.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4764 wrote to memory of 4696 4764 b8c800c5a22fbeeb183eecb3b5759470.exe 88 PID 4764 wrote to memory of 4696 4764 b8c800c5a22fbeeb183eecb3b5759470.exe 88 PID 4764 wrote to memory of 4696 4764 b8c800c5a22fbeeb183eecb3b5759470.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\b8c800c5a22fbeeb183eecb3b5759470.exe"C:\Users\Admin\AppData\Local\Temp\b8c800c5a22fbeeb183eecb3b5759470.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4764 -
C:\Windows\SysWOW64\NSK.exe"C:\Windows\system32\NSK.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4696
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\@3836.tmp
- Size 4KB
- SHA256 1dabedfe9c7cda2d8aa74c95ba57fb832a4066b20f4051c0330b4422de237eb3
- MD5 ccfd350414f3804bbb32ddd7eb3f6153
- SHA1 e91d270b8481d456a3beabf617ef3379a93f1137
- SHA512 328e069aaced9217eb9f4b4f20e27cd7ef933427e3388b3a0829089d694ea2280a2e5511a9eb577cec2a7b409cf367b0f17d8654076931648e152936fad810bd
- MD5 SHA1 SHA512
- Path C:\Windows\SysWOW64\NSK.001
- Size 1KB
- SHA256 cc16ab4af9a916b576afc200f553daf4a1656d7af3a9752d1ce171f8c26e7b9a
- MD5 3aa4501b2ee6bf155749545663f1b4a4
- SHA1 d76eb9ee1198ffdc83854dafd571fae20c3f34af
- SHA512 e407d56a98f1479eb877e3cda304523e29a8fe3c850e0b63b379a8975e77d596a27b64b1f064e62b5be02fa7c0fff2addc069df087fa1b0053e2d39caff1d4e4
- MD5 SHA1 SHA512
- Path C:\Windows\SysWOW64\NSK.006
- Size 4KB
- SHA256 6a28449ee15745e772f877b6133913325400a2ca3dbf829d76cf42e0c8d6da4c
- MD5 0868167c8915fb3d87d4e5a775a57ffd
- SHA1 5f223134e003382fd8c191a1f4ca94922f1d802e
- SHA512 d9f82239d6990b3dcc261f99f5acf20d71965b08146821575f830698fa07a5ec7ba0553494bb779e427692ada39ed5973489d1077aeec5ddfdf5a73d9c91b058
- SSDEEP 48:ai+n/33jmh39+5TwLzogO55+AAc+NqbD1ijq:Qn/Ch305KzEL+AAcSYD15
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\NSK.007
- Size 6KB
- SHA256 f16ca7e5533eb28fa882eb500add2a936f8d0a705cfc9f4e6c8f4c522a2cf6db
- MD5 5e023770dfb9d9068706facc958c7d66
- SHA1 9cf95074a78239da000452362c2167991970e972
- SHA512 a9621e77fe22b054686924cebee3c9a5c448b2f60bd1d4c8a6d6bda161ec270d9a5c76cbe07dcd1d0ee59fdc071de1d271344c629181e14c2c0a54cbac7831af
- SSDEEP 96:U0X59JuAtqzsKVbVN0UGNgDLo5vldvvJ969J0+s8VHPnf:U0XEAtqIOZNfG6DLohTaz0+vtPf
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\NSK.exe
- Size 239KB
- SHA256 c742feab59b4e1b7b188b02ed91ab34eaeb83c87ac6babfb5f08649ed2b8cd02
- MD5 2bada91f44e2a5133a5c056b31866112
- SHA1 9fbe664832d04d79f96fa090191b73d9811ef08d
- SHA512 dc797a06061937f8dd657a34d4373d3069c9c1a6752752516042e5d135fc41257c7a3a6738b3accd626a02f1887476197eca0ab28cf568daf57269cbe9c8eb41
- SSDEEP 6144:Go39kDP3P1NYfejZ+4IbAIID5vIGDOmcG:r9e1CmjZ+40n4N
- MD5 SHA1 SHA512 SSDEEP