Overview
overview
10Static
static
7MedicareSi...rp.dll
windows7-x64
1MedicareSi...rp.dll
windows10-2004-x64
1MedicareSi...rt.exe
windows7-x64
7MedicareSi...rt.exe
windows10-2004-x64
10MedicareSi...er.dll
windows7-x64
1MedicareSi...er.dll
windows10-2004-x64
10MedicareSi...nt.dll
windows7-x64
5MedicareSi...nt.dll
windows10-2004-x64
5MedicareSi...nt.dll
windows7-x64
1MedicareSi...nt.dll
windows10-2004-x64
1MedicareSi...ct.dll
windows7-x64
3MedicareSi...ct.dll
windows10-2004-x64
3MedicareSi...32.dll
windows7-x64
1MedicareSi...32.dll
windows10-2004-x64
1MedicareSi...ls.dll
windows7-x64
3MedicareSi...ls.dll
windows10-2004-x64
3MedicareSi..._1.dll
windows7-x64
3MedicareSi..._1.dll
windows10-2004-x64
3MedicareSi...MD.dll
windows7-x64
3MedicareSi...MD.dll
windows10-2004-x64
3MedicareSi...rl.dll
windows7-x64
3MedicareSi...rl.dll
windows10-2004-x64
3MedicareSi...in.dll
windows7-x64
3MedicareSi...in.dll
windows10-2004-x64
3MedicareSi..._1.dll
windows7-x64
1MedicareSi..._1.dll
windows10-2004-x64
1MedicareSi...20.dll
windows7-x64
3MedicareSi...20.dll
windows10-2004-x64
3MedicareSign/opus.dll
windows7-x64
1MedicareSign/opus.dll
windows10-2004-x64
1MedicareSi...e3.dll
windows7-x64
1MedicareSi...e3.dll
windows10-2004-x64
3Analysis
-
max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
15-07-2024 08:31
Behavioral task
behavioral1
Sample
MedicareSign/AstCrp.dll
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
MedicareSign/AstCrp.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral3
Sample
MedicareSign/MedicareStart.exe
Resource
win7-20240705-en
Behavioral task
behavioral4
Sample
MedicareSign/MedicareStart.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral5
Sample
MedicareSign/SHFolder.dll
Resource
win7-20240705-en
Behavioral task
behavioral6
Sample
MedicareSign/SHFolder.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral7
Sample
MedicareSign/astclient.dll
Resource
win7-20240705-en
Behavioral task
behavioral8
Sample
MedicareSign/astclient.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral9
Sample
MedicareSign/astprint.dll
Resource
win7-20240704-en
Behavioral task
behavioral10
Sample
MedicareSign/astprint.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral11
Sample
MedicareSign/astrct.dll
Resource
win7-20240705-en
Behavioral task
behavioral12
Sample
MedicareSign/astrct.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral13
Sample
MedicareSign/aw_sas32.dll
Resource
win7-20240705-en
Behavioral task
behavioral14
Sample
MedicareSign/aw_sas32.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral15
Sample
MedicareSign/hatls.dll
Resource
win7-20240704-en
Behavioral task
behavioral16
Sample
MedicareSign/hatls.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral17
Sample
MedicareSign/libcrypto1_1.dll
Resource
win7-20240704-en
Behavioral task
behavioral18
Sample
MedicareSign/libcrypto1_1.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral19
Sample
MedicareSign/libcryptoMD.dll
Resource
win7-20240705-en
Behavioral task
behavioral20
Sample
MedicareSign/libcryptoMD.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral21
Sample
MedicareSign/libcurl.dll
Resource
win7-20240708-en
Behavioral task
behavioral22
Sample
MedicareSign/libcurl.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral23
Sample
MedicareSign/libjpegturbowin.dll
Resource
win7-20240705-en
Behavioral task
behavioral24
Sample
MedicareSign/libjpegturbowin.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral25
Sample
MedicareSign/libssl1_1.dll
Resource
win7-20240708-en
Behavioral task
behavioral26
Sample
MedicareSign/libssl1_1.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral27
Sample
MedicareSign/msvcr120.dll
Resource
win7-20240704-en
Behavioral task
behavioral28
Sample
MedicareSign/msvcr120.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral29
Sample
MedicareSign/opus.dll
Resource
win7-20240705-en
Behavioral task
behavioral30
Sample
MedicareSign/opus.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral31
Sample
MedicareSign/sqlite3.dll
Resource
win7-20240705-en
Behavioral task
behavioral32
Sample
MedicareSign/sqlite3.dll
Resource
win10v2004-20240709-en
General
-
Target
MedicareSign/astclient.dll
-
Size
675KB
-
MD5
7bf95a14483346eae890e6f4354c74a8
-
SHA1
7de11b13cfe609d454bdd1393ed3d79a127c1b7c
-
SHA256
719f267e41c95e36f99f5da0b9d5d70054d3e9c16e99fb1122948382b976d614
-
SHA512
ef8b24e6079f05b3f1253e4487e1426639ceb5c1e13ca80046debd224353280e921ea765958f5b3f564983992a294e0242fd7bf4753cce24c51caa86557b51fe
-
SSDEEP
12288:eVX2O3PmDFam0YxykOeH74CMDEnvpWua1ph0lhSMXlCIVktHFlAP:QGMmbjxyk144vpWukh0lhSMXlaDAP
Malware Config
Signatures
-
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\log\AstCln240715_1028.log rundll32.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 5108 1028 WerFault.exe 83 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4600 wrote to memory of 1028 4600 rundll32.exe 83 PID 4600 wrote to memory of 1028 4600 rundll32.exe 83 PID 4600 wrote to memory of 1028 4600 rundll32.exe 83
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\MedicareSign\astclient.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4600 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\MedicareSign\astclient.dll,#12⤵
- Drops file in System32 directory
PID:1028 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1028 -s 7283⤵
- Program crash
PID:5108
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1028 -ip 10281⤵PID:3844