| File name: | opszx.scr.exe |
| Full analysis: | https://app.any.run/tasks/cac62fbe-1403-480b-9ab6-cae9fcc2680e |
| Verdict: | Malicious activity |
| Threats: | FormBook is a data stealer that is being distributed as a MaaS. FormBook differs from a lot of competing malware by its extreme ease of use that allows even the unexperienced threat actors to use FormBook virus. |
| Analysis date: | September 19, 2024, 00:31:28 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | E81883368313FC5B3CC4D1F1F1889827 |
| SHA1: | 13CA55C0A193F66678855229AFBF82A95A6D30DE |
| SHA256: | 481FE3840D515D4D19D6FB16143AA6845B9DF798FE8D6C843297D34219CB14D0 |
| SSDEEP: | 12288:Qw7NLat+ilxNKkh0Afs8c1+rPHSqA2oQFi/ELi0CCm:L7NL7ilxEkhRfs8c1+jyqA1QFQEe3Cm |
MALICIOUS
FORMBOOK has been detected (YARA)
- dfrgui.exe (PID: 3896)
SUSPICIOUS
Application launched itself
- opszx.scr.exe (PID: 5060)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
Formbook
(PID) Process(3896) dfrgui.exe
C2www.besthomeincome24.com/ufuh/
Strings (160)90vJyJPjR0OX0hbf
aRriiovw+T+Q7CEwlaewkdCt/jQ=
mLpu/LPoR00ehX30aD843ew=
fGP32NuCwH2cjgc01f8kLSPdv3PpOw==
NQyDFwr97H3ZhgfAHX4=
uPKx6awjhsEJGR2xHzI=
W5oFspQKR36BK5kNHf/obSzu
C0JnKWx4PDND33s=
jYwB5VAqNOgqP/+tsGod
Sbg2jt6LckOMptV/p0Y=
pTxlOFETvEItyA==
Z/7oqwyEzEyY
qrMj210NsVNRrU0s9PUajZ5IbZ4K
No0ZCFigrI0qj3X0oVrSl+o=
c1EEk8zJqLvk5XDbM7P1yg==
rYCZSYGjmy0VUvH0lVc=
fvPFpI1/PvDCsQ==
EN8+klk5uy2plfEtXTc=
CEf6jBvkw8IGl1cVwg==
DgU8zRPVDdGu2610bYE=
CkVU5eAG9WOAA5u9
OiVKL7riyvjYbxTPURgE
Ig+Tl4HPtKfC3kdzDRDWyvnU
1DtWDrka/uPeiC1Db7o8
5cRkxbW7AlbhpAk=
rzfDWmm1Vj52Z7m5K147MoxsxcI=
SdJUEP9Ek0zsUG2DlWVm
DdnAwEKyVGE7OLal
5SKYECUnE2oHbMz/KXlk45MVmQ==
jMAqRHVIaXZvSAqfyhClkA==
XHkfUUpLjEoLKMSI21X8uWzKJS5+
LHeP0gt39A0uctsmKkNU
XT+y97IqbrvLHVVvNuiF5uUuVrIfdA==
tpKfst0qYjpXBNc8KA==
EcOJZq55za5X
w8uQHq+K+rr+ncZp/hLKqdYF
fu9PUS9udt9mwJHqYDKu2RTdvw==
odyb80c4OHgMEN+7jQ==
XwLR3n5TrblANbqkHEigy6+2
/SDTjXxZV1EG7F8mrqQj
ouSTIr+sGy0Asin1Tj6z
ac+RU7TY6i4cffTNOV0=
tBrK1bbj3x3vO1Mwnfvvcfi1Iw==
PoSQvPVbkRape4PoUjquZRA=
rSHrOZVc//wbLf/63+txQg==
A0sQ54jUjmQxmA==
ss60WVxrWoPC5N6bCpwrtLEeLw==
2mda65C5lf+b0nIJR+W0A56GXf0=
7LGpd+OuTVkZnuo4QNlF9ZGK
n/iqvNIGkqXf5ctcali/mw==
XPrnu3SqEouqwxTDnMo=
AnKaU7qdorQRTJtR5A+ZpIno
iZeGlFTJc+J0lbarSw==
/H8QcA8DuLqYqY4=
XZlWWkWpNqs=
rdVQMO2wPazKTP466wd/Jl97FTd4
It0BzxTTDzWXSq246gUm96e6j8HJ
5LvXgrikntVvn8XVWJDzpxvfHqSedw==
+ufSrTXrKABb0/wH0Rc8jQ==
D33OFhQ0hoD7HGZDNPgPg74KDPM3lQ==
wmAicLOa/L3pUHmb+/FX2A==
xoBOcBQJADkXU/I=
ceABC9NVtaCT
POlHGkZ0xjNRxn0HqQ3YHeYtGA==
Koscf04+Vv5y/qZ4guoO+XoD1ah2ZmtFlUX1L1BMng==
dfrgui.exe
cmdl32.exe
DevicePairingWizard.exe
ipconfig.exe
msiexec.exe
dialer.exe
grpconv.exe
makecab.exe
unregmp2.exe
DpiScaling.exe
TSTheme.exe
ROUTE.EXE
kernel32.dll
advapi32.dll
ws2_32.dll
USERNAME
LOCALAPPDATA
USERPROFILE
APPDATA
TEMP
COMPUTERNAME
ProgramFiles
/c copy "
\Run
\Policies
\Explorer
\Registry\User
\Registry\Machine
\SOFTWARE\Microsoft\Windows\CurrentVersion
Office\15.0\Outlook\Profiles\Outlook\
\SOFTWARE\Mozilla\Mozilla
\Mozilla
Username:
Password:
formSubmitURL
usernameField
encryptedUsername
encryptedPassword
\logins.json
\Mail\
\Foxmail
\Storage\
\Accounts\Account.rec0
\Data\AccCfg\Accounts.tdat
\Google\Chrome\User Data\Default\Login Data
SeShutdownPrivilege
\BaseNamedObjects
POST
HTTP/1.1
Host:
Connection: close
Content-Length:
Cache-Control:
Origin: http://
Content-Type: application/x-www-form-urlencoded
Accept:
Referer: http://
Accept-Language:
Accept-Encoding:
Set-ExecutionPolicy RemoteSigned -Scope CurrentUser
-noexit "& ""
PowerShell.exe
\Opera Software\Opera Stable
kernel32.dll
user32.dll
wininet.dll
rg.ini
Recovery
profiles.ini
guid
Connection: close
pass
token
email
login
signin
account
persistent
GET
GET
PUT
POST
OPTIONS
User-Agent:
API-
MS-W
_301 Moved
_302 Found
InternetOpenA
InternetConnectA
HttpOpenRequestA
HttpSendRequestA
InternetReadFile
InternetCloseHandle
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (63.1) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (23.8) |
| .dll | | | Win32 Dynamic Link Library (generic) (5.6) |
| .exe | | | Win32 Executable (generic) (3.8) |
| .exe | | | Generic Win/DOS Executable (1.7) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2099:11:30 12:38:21+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 48 |
| CodeSize: | 741376 |
| InitializedDataSize: | 2560 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xb6f8e |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 11.0.0.0 |
| ProductVersionNumber: | 11.0.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | IE Per-User Initialization Utility |
| CompanyName: | Microsoft Corporation |
| FileDescription: | ie4uinit |
| FileVersion: | 11.0.0.0 |
| InternalName: | ie4uinit.exe |
| LegalCopyright: | © Microsoft Corporation. All rights reserved. |
| OriginalFileName: | ie4uinit.exe |
| ProductName: | Internet Explorer |
| ProductVersion: | 11.0.0.0 |
| AssemblyVersion: | 11.0.0.0 |
Total processes
130
Monitored processes
5
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3272 | C:\WINDOWS\system32\SppExtComObj.exe -Embedding | C:\Windows\System32\SppExtComObj.Exe | — | svchost.exe | |||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: KMS Connection Broker Version: 10.0.19041.3996 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 3896 | "C:\Windows\SysWOW64\dfrgui.exe" | C:\Windows\SysWOW64\dfrgui.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft® Drive Optimizer Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
Formbook(PID) Process(3896) dfrgui.exe C2www.besthomeincome24.com/ufuh/ Strings (160)90vJyJPjR0OX0hbf aRriiovw+T+Q7CEwlaewkdCt/jQ= mLpu/LPoR00ehX30aD843ew= fGP32NuCwH2cjgc01f8kLSPdv3PpOw== NQyDFwr97H3ZhgfAHX4= uPKx6awjhsEJGR2xHzI= W5oFspQKR36BK5kNHf/obSzu C0JnKWx4PDND33s= jYwB5VAqNOgqP/+tsGod Sbg2jt6LckOMptV/p0Y= pTxlOFETvEItyA== Z/7oqwyEzEyY qrMj210NsVNRrU0s9PUajZ5IbZ4K No0ZCFigrI0qj3X0oVrSl+o= c1EEk8zJqLvk5XDbM7P1yg== rYCZSYGjmy0VUvH0lVc= fvPFpI1/PvDCsQ== EN8+klk5uy2plfEtXTc= CEf6jBvkw8IGl1cVwg== DgU8zRPVDdGu2610bYE= CkVU5eAG9WOAA5u9 OiVKL7riyvjYbxTPURgE Ig+Tl4HPtKfC3kdzDRDWyvnU 1DtWDrka/uPeiC1Db7o8 5cRkxbW7AlbhpAk= rzfDWmm1Vj52Z7m5K147MoxsxcI= SdJUEP9Ek0zsUG2DlWVm DdnAwEKyVGE7OLal 5SKYECUnE2oHbMz/KXlk45MVmQ== jMAqRHVIaXZvSAqfyhClkA== XHkfUUpLjEoLKMSI21X8uWzKJS5+ LHeP0gt39A0uctsmKkNU XT+y97IqbrvLHVVvNuiF5uUuVrIfdA== tpKfst0qYjpXBNc8KA== EcOJZq55za5X w8uQHq+K+rr+ncZp/hLKqdYF fu9PUS9udt9mwJHqYDKu2RTdvw== odyb80c4OHgMEN+7jQ== XwLR3n5TrblANbqkHEigy6+2 /SDTjXxZV1EG7F8mrqQj ouSTIr+sGy0Asin1Tj6z ac+RU7TY6i4cffTNOV0= tBrK1bbj3x3vO1Mwnfvvcfi1Iw== PoSQvPVbkRape4PoUjquZRA= rSHrOZVc//wbLf/63+txQg== A0sQ54jUjmQxmA== ss60WVxrWoPC5N6bCpwrtLEeLw== 2mda65C5lf+b0nIJR+W0A56GXf0= 7LGpd+OuTVkZnuo4QNlF9ZGK n/iqvNIGkqXf5ctcali/mw== XPrnu3SqEouqwxTDnMo= AnKaU7qdorQRTJtR5A+ZpIno iZeGlFTJc+J0lbarSw== /H8QcA8DuLqYqY4= XZlWWkWpNqs= rdVQMO2wPazKTP466wd/Jl97FTd4 It0BzxTTDzWXSq246gUm96e6j8HJ 5LvXgrikntVvn8XVWJDzpxvfHqSedw== +ufSrTXrKABb0/wH0Rc8jQ== D33OFhQ0hoD7HGZDNPgPg74KDPM3lQ== wmAicLOa/L3pUHmb+/FX2A== xoBOcBQJADkXU/I= ceABC9NVtaCT POlHGkZ0xjNRxn0HqQ3YHeYtGA== Koscf04+Vv5y/qZ4guoO+XoD1ah2ZmtFlUX1L1BMng== dfrgui.exe cmdl32.exe DevicePairingWizard.exe ipconfig.exe msiexec.exe dialer.exe grpconv.exe makecab.exe unregmp2.exe DpiScaling.exe TSTheme.exe ROUTE.EXE kernel32.dll advapi32.dll ws2_32.dll USERNAME LOCALAPPDATA USERPROFILE APPDATA TEMP COMPUTERNAME ProgramFiles /c copy " \Run \Policies \Explorer \Registry\User \Registry\Machine \SOFTWARE\Microsoft\Windows\CurrentVersion Office\15.0\Outlook\Profiles\Outlook\ \SOFTWARE\Mozilla\Mozilla \Mozilla Username: Password: formSubmitURL usernameField encryptedUsername encryptedPassword \logins.json \Mail\ \Foxmail \Storage\ \Accounts\Account.rec0 \Data\AccCfg\Accounts.tdat \Google\Chrome\User Data\Default\Login Data SeShutdownPrivilege \BaseNamedObjects POST HTTP/1.1 Host: Connection: close Content-Length: Cache-Control: Origin: http:// Content-Type: application/x-www-form-urlencoded Accept: Referer: http:// Accept-Language: Accept-Encoding: Set-ExecutionPolicy RemoteSigned -Scope CurrentUser -noexit "& "" PowerShell.exe \Opera Software\Opera Stable kernel32.dll user32.dll wininet.dll rg.ini Recovery profiles.ini guid Connection: close pass token email login signin account persistent GET GET PUT POST OPTIONS User-Agent: API- MS-W _301 Moved _302 Found InternetOpenA InternetConnectA HttpOpenRequestA HttpSendRequestA InternetReadFile InternetCloseHandle | |||||||||||||||
| 5060 | "C:\Users\admin\AppData\Local\Temp\opszx.scr.exe" | C:\Users\admin\AppData\Local\Temp\opszx.scr.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: ie4uinit Exit code: 0 Version: 11.0.0.0 Modules
| |||||||||||||||
| 7012 | "C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEvent | C:\Windows\System32\slui.exe | — | SppExtComObj.Exe | |||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Windows Activation Client Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7092 | "C:\Users\admin\AppData\Local\Temp\opszx.scr.exe" | C:\Users\admin\AppData\Local\Temp\opszx.scr.exe | — | opszx.scr.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: ie4uinit Exit code: 0 Version: 11.0.0.0 Modules
| |||||||||||||||
Total events
406
Read events
406
Write events
0
Delete events
0
Modification events
Executable files
0
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
4
TCP/UDP connections
28
DNS requests
15
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
420 | svchost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
5468 | SIHClient.exe | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
5468 | SIHClient.exe | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
3888 | svchost.exe | 239.255.255.250:1900 | — | — | — | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
32 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
2120 | MoUsoCoreWorker.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
— | — | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
— | — | 95.101.149.131:80 | www.microsoft.com | Akamai International B.V. | NL | whitelisted |
— | — | 104.46.162.225:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | AU | unknown |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
420 | svchost.exe | 40.126.31.71:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
420 | svchost.exe | 192.229.221.95:80 | ocsp.digicert.com | EDGECAST | US | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
browser.pipe.aria.microsoft.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |
nexusrules.officeapps.live.com |
| whitelisted |