Report - csrssd.exe

.NET framework(MSIL) AntiDebug AntiVM .NET EXE PE File PE32
ScreenShot
Created 2023.07.11 07:59 Machine s1_win7_x6401
Filename csrssd.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
7
Behavior Score
10.0
ZERO API file : malware
VT API (file) 29 detected (malicious, high confidence, MachineLearning, Anomalous, 100%, Eldorado, Attribute, HighConfidence, GenKryptik, GLLR, score, PWSX, AGEN, moderate, Static AI, Malicious PE, Sabsik, Detected, unsafe, dGZlOgxp+E3j6SmjpQ, susgen, Kryptik, AJAC, ZemsilF, Fm0@aWMmXXi, confidence)
md5 c415c178036686bf3a3fbd8dc296a686
sha256 0bdde3cb5bc10aa2aa88e00599e59b6ebfb1ce24fe78dc2871ba3c8118f61c91
ssdeep 12288:L1I+ZdhnhN/xayCvZPcdDFuP/27MsrfH0tj10YJ:RI+ZDhTikRuP/C/0
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (21cnts)

Level Description
danger Executed a process and injected code into it
warning File has been identified by 29 AntiVirus engines on VirusTotal as malicious
watch Allocates execute permission to another process indicative of possible code injection
watch Code injection by writing an executable or DLL to the memory of another process
watch One or more of the buffers contains an embedded PE file
watch Potential code injection by writing to the memory of another process
watch Resumed a suspended thread in a remote process potentially indicative of process injection
watch Used NtSetContextThread to modify a thread in a remote process indicative of process injection
notice Allocates read-write-execute memory (usually to unpack itself)
notice Checks for the Locally Unique Identifier on the system for a suspicious privilege
notice Creates hidden or system file
notice HTTP traffic contains suspicious features which may be indicative of malware related traffic
notice One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
notice Resolves a suspicious Top Level Domain (TLD)
notice Sends data using the HTTP POST Method
notice The binary likely contains encrypted or compressed data indicative of a packer
notice Yara rule detected in process memory
info Checks amount of memory in system
info Checks if process is being debugged by a debugger
info One or more processes crashed

Rules (12cnts)

Level Name Description Collection
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (upload)
info anti_dbg Checks if being debugged memory
info DebuggerCheck__GlobalFlags (no description) memory
info DebuggerCheck__QueryInfo (no description) memory
info DebuggerHiding__Active (no description) memory
info DebuggerHiding__Thread (no description) memory
info disable_dep Bypass DEP memory
info Is_DotNET_EXE (no description) binaries (upload)
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature binaries (upload)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory

Network (39cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://www.niubiseo158.top/8mwu/ US CNSERVERS 192.250.196.82 clean
http://www.framedeals.buzz/8mwu/ US CLOUDFLARENET 172.67.165.207
http://www.investmentmastr.com/8mwu/ US AS-26496-GO-DADDY-COM-LLC 68.178.150.54
http://www.date-store.info/8mwu/ Unknown 162.43.104.75 clean
http://www.uty186.com/8mwu/ HK DXTL Tseung Kwan O Service 122.10.20.248
http://www.framedeals.buzz/8mwu/?AtRS=VWM5CmNEXV0Wws5lOi41B/CT5DkRJBR63DKPnwmZQhPPNIeL3HbUg+RwDwZOLCkdO7WSUUICcQ5s3r8q/6yBYhvdm+7LZZAalqtbZFE=&L08E=VdmpZkW2d US CLOUDFLARENET 104.21.73.200 clean
http://www.homesalerealtywi.com/8mwu/?AtRS=oINJ/gp/aJeJF1lmtDttIp5zYupEQ9+i41jy+2inlUmQPi8yQegxtF+73D7Viv9VJKhdmECNx8qtF80OZhRsVw7SvxMGhJ4ooOkNn5A=&L08E=VdmpZkW2d VG CONFLUENCE-NETWORK-INC 204.11.56.48
http://www.snazzy.top/8mwu/ Unknown 203.161.55.144
http://www.effmkg.top/8mwu/ US COGENT-174 206.119.167.205
http://www.snazzy.top/8mwu/?AtRS=hq4LUNPbOJJ32NO4taYz6MbqZKFszgoxkz2vk6DroaZ2ot5/vFuGkg9TSETWpPkUvR5zvHY4W4/OsVbmF+Jpeu4hTeI286k5D1jdj0E=&L08E=VdmpZkW2d Unknown 203.161.55.144
http://www.homesalerealtywi.com/8mwu/ VG CONFLUENCE-NETWORK-INC 204.11.56.48
http://www.niubiseo158.top/8mwu/?AtRS=DpBsY/EqeNdrZFzJBhJgkE6I4JhtuhKG/ihhRdK7+ZddsX/RTtTF+8Mul1ZbonjYts59d9bhAh3cEH3KC86wGfwsRy2myXMRgqa2uDs=&L08E=VdmpZkW2d US CNSERVERS 192.250.196.82
http://www.effmkg.top/8mwu/?AtRS=cuz6fZ9rAQU+AblclZ0dz+AWyQnWqvDu1YxezGquJoJchTSyh9fWxECepA/LrKXAq+eZ/F2gxCu5cJ8yEGWuS25DvJh6mlleb3H+l3g=&L08E=VdmpZkW2d US COGENT-174 206.119.167.205
http://www.baotrang-jewelry.com/8mwu/ Unknown 13.215.123.39
http://www.date-store.info/8mwu/?AtRS=QCWughoEBLNWlxoKJazXJvFVptHaudS5CtBHXaoHYx4YCXEq+K4liCb7WZlVD+RMuH5kCBUqy3mcV+3Nr6i4SxN+kY5cxzsbKOKS/94=&L08E=VdmpZkW2d Unknown 162.43.104.75
http://www.sqlite.org/2017/sqlite-dll-win32-x86-3200000.zip US Linode, LLC 45.33.6.223
http://www.investmentmastr.com/8mwu/?AtRS=PsH7VurMFQyD6ju4MnYVKLsngyhRF0i3kpEyk+bvF+v2WbyUoo2xQnfNKDF27FubHa/Uq1yd2iymJaC1K/rhLY6C/0yWRYEJmyt9xCA=&L08E=VdmpZkW2d US AS-26496-GO-DADDY-COM-LLC 68.178.150.54
http://www.baotrang-jewelry.com/8mwu/?AtRS=EU3iIBTa7/FiG89Zkn9giTIgWQjAgZeKQjtjqA56CDWeG/Y64M9bd0fUJ8VEDSTetbKxDk1W+HVeVL/Bv/O0oK42dWysymJF/Fz7e18=&L08E=VdmpZkW2d Unknown 13.215.123.39
www.effmkg.top US COGENT-174 206.119.167.205 clean
www.dinohoki85.online Unknown clean
www.homesalerealtywi.com VG CONFLUENCE-NETWORK-INC 204.11.56.48 clean
www.niubiseo158.top US CNSERVERS 192.250.196.82 clean
www.snazzy.top Unknown 203.161.55.144 clean
www.framedeals.buzz US CLOUDFLARENET 104.21.73.200 clean
www.investmentmastr.com US AS-26496-GO-DADDY-COM-LLC 68.178.150.54 clean
www.uty186.com HK DXTL Tseung Kwan O Service 122.10.20.248 clean
www.date-store.info Unknown 162.43.104.75 clean
www.ansuzmedia.store Unknown clean
www.baotrang-jewelry.com Unknown 13.215.123.39 clean
206.119.167.205 US COGENT-174 206.119.167.205 clean
68.178.150.54 US AS-26496-GO-DADDY-COM-LLC 68.178.150.54 clean
162.43.104.75 Unknown 162.43.104.75 clean
192.250.196.82 US CNSERVERS 192.250.196.82 clean
172.67.165.207 US CLOUDFLARENET 172.67.165.207 clean
54.179.30.8 SG AMAZON-02 54.179.30.8 clean
45.33.6.223 US Linode, LLC 45.33.6.223 clean
204.11.56.48 VG CONFLUENCE-NETWORK-INC 204.11.56.48 phishing
203.161.55.144 Unknown 203.161.55.144 clean
122.10.20.248 HK DXTL Tseung Kwan O Service 122.10.20.248 clean

Suricata ids

PE API

IAT(Import Address Table) Library

mscoree.dll
 0x402000 _CorExeMain

EAT(Export Address Table) is none



Similarity measure (PE file only) - Checking for service failure