General
- Target 1109118734xlsx.exe
- Size 1.4MB
- Sample251012-3lch1agn2x
- SHA256 d78beea33ff995cf0269602c7b95e498c1eec4b9be5e70c5b367a4435842db31
- MD5 6aabda25e2138d1197fa327c1096ea93
- SHA1 5c46a56f3b2aa3b383b431b223d2f847adcedddb
- SHA512 130dd9b3b7698ca24a1efb5b5b2202c1d9566201ffe180c1d833e91a1f0b8435ffda193a8bcd80204a245b5aa8922c6d8b1aeaa03e6c5651776df8fccdc53b1e
- SSDEEP 24576:Kadmu5MNkum/mthprduS9gTC5F4h0zM1ObgZuXiuG9uQ1/Wg2Uw95jcscEb67xsb:pNmyz+/tiTC5Fo0QIG9uk/2/Xjct3s
- MD5 SHA1 SHA512 SSDEEP
Static task
static1
Behavioral task
behavioral1
Sample
1109118734xlsx.exe
Resource
win10v2004-20250619-en
Behavioral task
behavioral2
Sample
1109118734xlsx.exe
Resource
win11-20250619-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20250619-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win11-20250610-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20250619-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11-20250619-en
Malware Config
Extracted
-
remcos
-
7.0.4 Pro
-
196.251.72.34:2404
Targets
-
- Target 1109118734xlsx.exe
- Size 1.4MB
- SHA256 d78beea33ff995cf0269602c7b95e498c1eec4b9be5e70c5b367a4435842db31
- MD5 6aabda25e2138d1197fa327c1096ea93
- SHA1 5c46a56f3b2aa3b383b431b223d2f847adcedddb
- SHA512 130dd9b3b7698ca24a1efb5b5b2202c1d9566201ffe180c1d833e91a1f0b8435ffda193a8bcd80204a245b5aa8922c6d8b1aeaa03e6c5651776df8fccdc53b1e
- SSDEEP 24576:Kadmu5MNkum/mthprduS9gTC5F4h0zM1ObgZuXiuG9uQ1/Wg2Uw95jcscEb67xsb:pNmyz+/tiTC5Fo0QIG9uk/2/Xjct3s
- MD5 SHA1 SHA512 SSDEEP
Score10/10-
Remcos family
-
Detected Nirsoft tools
Free utilities often used by attackers which can steal passwords, product keys, etc.
-
NirSoft MailPassView
Password recovery tool for various email clients
-
NirSoft WebBrowserPassView
Password recovery tool for various web browsers
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE
-
Loads dropped DLL
-
Accesses Microsoft Outlook accounts
-
Adds Run key to start application
-
Legitimate hosting services abused for malware hosting/C2
-
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
-
Suspicious use of NtCreateThreadExHideFromDebugger
-
Suspicious use of NtSetInformationThreadHideFromDebugger
-
Suspicious use of SetThreadContext
-
- Target $PLUGINSDIR/System.dll
- Size 12KB
- SHA256 23d618a0293c78ce00f7c6e6dd8b8923621da7dd1f63a070163ef4c0ec3033d6
- MD5 192639861e3dc2dc5c08bb8f8c7260d5
- SHA1 58d30e460609e22fa0098bc27d928b689ef9af78
- SHA512 6e573d8b2ef6ed719e271fd0b2fd9cd451f61fc9a9459330108d6d7a65a0f64016303318cad787aa1d5334ba670d8f1c7c13074e1be550b4a316963ecc465cdc
- SSDEEP 192:ljHcQ0qWTlt7wi5Aj/lM0sEWD/wtYbBjpNQybC7y+XZqE0QPi:R/Qlt7wiij/lMRv/9V4bfr
- MD5 SHA1 SHA512 SSDEEP
Score3/10 -
- Target $PLUGINSDIR/nsDialogs.dll
- Size 9KB
- SHA256 89a82c4849c21dfe765052681e1fad02d2d7b13c8b5075880c52423dca72a912
- MD5 b7d61f3f56abf7b7ff0d4e7da3ad783d
- SHA1 15ab5219c0e77fd9652bc62ff390b8e6846c8e3e
- SHA512 6467c0de680fadb8078bdaa0d560d2b228f5a22d4d8358a1c7d564c6ebceface5d377b870eaf8985fbee727001da569867554154d568e3b37f674096bbafafb8
- SSDEEP 96:ooEv02zUu56FcS817eTaXx85qHFcUcxSgB5PKtAtoniJninnt3DVEB3YMNqkzfFc:ooEvCu5e81785qHFcU0PuAw0uyyIFc
- MD5 SHA1 SHA512 SSDEEP
Score3/10