General
- Target MasonService.pif
- Size 2.6MB
- Sample260718-14f8ssd17l
- SHA256 9f7bf14ba4ebd047fe0382abd5d411575f137327faf6aa022f4fa3128291537a
- MD5 08f9483e5939760944a7b1e2a8a85008
- SHA1 b45b5c246d208a0e2f3ac63ce4e0822274beaf84
- SHA512 9343acfde0dd2f00e32c604d757957f6166e512af89029f89c279f3db486b8641c3573aa5762145fd2a7fe94492a8062e0dc0ac30c29b0d30314194073cd81a9
- SSDEEP 384:O00RrUnRzlJzku8A90swgcAI/miS0Z+nYbfVrn3tgGh2a4YZ5BIa5E/oOAJfmUGv:jeraRz39d+3y
- TLSH T16BC51029DF7B29FF0026CC9BDBD28263F4549126699D9BA209D243EB0793D076493D3C
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
MasonService.exe
Resource
win10v2004-20260513-en
19 signatures
150 seconds
Behavioral task
behavioral2
Sample
MasonService.exe
Resource
win11ltsc2024-20260710-en
20 signatures
150 seconds
Malware Config
Targets
-
- Target MasonService.pif
- Size 2.6MB
- SHA256 9f7bf14ba4ebd047fe0382abd5d411575f137327faf6aa022f4fa3128291537a
- MD5 08f9483e5939760944a7b1e2a8a85008
- SHA1 b45b5c246d208a0e2f3ac63ce4e0822274beaf84
- SHA512 9343acfde0dd2f00e32c604d757957f6166e512af89029f89c279f3db486b8641c3573aa5762145fd2a7fe94492a8062e0dc0ac30c29b0d30314194073cd81a9
- SSDEEP 384:O00RrUnRzlJzku8A90swgcAI/miS0Z+nYbfVrn3tgGh2a4YZ5BIa5E/oOAJfmUGv:jeraRz39d+3y
- TLSH T16BC51029DF7B29FF0026CC9BDBD28263F4549126699D9BA209D243EB0793D076493D3C
- MD5 SHA1 SHA512 SSDEEP TLSH
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Detects DonutLoader
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Detects Umbral payload
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Family: DonutLoader
DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Creates new service(s)
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Executes dropped EXE
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Stops running service(s)
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Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Drops file in System32 directory