MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8321c0b6abc15f9feeef5021f4e37c4110e629cb64f7b0861b481e23ba86d54a. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Expiro


Vendor detections: 14


Intelligence 14 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8321c0b6abc15f9feeef5021f4e37c4110e629cb64f7b0861b481e23ba86d54a
SHA3-384 hash: 71dd3d46b7025faabcf57db6de3a31ae74c98f7bd1c1ad6b32f75808081589a694b40452ebe59b5687371348df5bbfa2
SHA1 hash: b59a67464d6ef0f9775051f9fce6257440ea658f
MD5 hash: 6427a83c16a75026c61e21ff5773fd20
humanhash: low-harry-pluto-sodium
File name:Payment Advice - Advice RefGLV626201911]Priority payment Customer_PDF_.exe
Download: download sample
Signature Expiro
Create hunting rule
File size:1'857'536 bytes
First seen:2024-08-18 16:23:33 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 49152:gh+vkldoPK8Ya+Nt9i8FIwD+wLNiXicJFFRGNzj3:BscPK8ElJ7wRGpj3
Threatray 6 similar samples on MalwareBazaar
TLSH T1B985E00273D5C032FFABA2739B6AF60556BC7C254123852F13982D79B9702B2673D663
TrID 63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
11.6% (.EXE) Win64 Executable (generic) (10523/12/4)
7.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.9% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter lowmal3
Tags:exe Expiro

Intelligence

File Origin
# of uploads :
1
# of downloads :
356
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment Advice - Advice RefGLV626201911]Priority payment Customer_PDF_.exe
Verdict:
Malicious activity
Analysis date:
2024-08-18 16:34:22 UTC
Tags:
sinkhole expiro m0yv
Link:
https://app.any.run/tasks/46980ca7-0a46-43e1-bf15-efc5b08a6f89

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Trojan.Autoit-10033720-0
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66c22024aa5b40be0aa0777f
Tags:
Network Stealth Expiro
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/8321c0b6abc15f9feeef5021f4e37c4110e629cb64f7b0861b481e23ba86d54a
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Expiro
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e54e3ca9-443c-4773-afb4-7036e0b6bf19
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1494559
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Binary is likely a compiled AutoIt script file
Creates files inside the volume driver (system volume information)
Drops executable to a common third party application directory
Found direct / indirect Syscall (likely to bypass EDR)
Found evasive API chain (may stop execution after checking computer name)
Found evasive API chain (may stop execution after checking volume information)
Infects executable files (exe, dll, sys, html)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1494559 Sample: Payment Advice - Advice Ref... Startdate: 18/08/2024 Architecture: WINDOWS Score: 100 36 zlenh.biz 2->36 38 xlfhhhm.biz 2->38 40 17 other IPs or domains 2->40 52 Suricata IDS alerts for network traffic 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Antivirus detection for dropped file 2->56 58 12 other signatures 2->58 7 armsvc.exe 1 2->7         started        12 Payment Advice - Advice RefGLV626201911]Priority payment Customer_PDF_.exe 5 2->12         started        14 elevation_service.exe 2->14         started        16 19 other processes 2->16 signatures3 process4 dnsIp5 42 npukfztj.biz 44.221.84.105, 49735, 80 AMAZON-AESUS United States 7->42 44 przvgke.biz 172.234.222.138, 49736, 49737, 80 AKAMAI-ASN1EU United States 7->44 46 vjaxhpbji.biz 82.112.184.197, 49739, 49740, 49742 FIRST_LINE-SP_FOR_B2B_CUSTOMERSUPSTREAMSRU Russian Federation 7->46 20 C:\Windows\System32\wbengine.exe, PE32+ 7->20 dropped 22 C:\Windows\System32\wbem\WmiApSrv.exe, PE32+ 7->22 dropped 24 C:\Windows\System32\vds.exe, PE32+ 7->24 dropped 34 138 other malicious files 7->34 dropped 60 Drops executable to a common third party application directory 7->60 62 Infects executable files (exe, dll, sys, html) 7->62 48 knjghuig.biz 18.141.10.107, 49732, 49733, 49738 AMAZON-02US United States 12->48 50 pywolwnvd.biz 54.244.188.177, 49730, 49731, 49734 AMAZON-02US United States 12->50 26 C:\Windows\System32\alg.exe, PE32+ 12->26 dropped 28 DiagnosticsHub.Sta...llector.Service.exe, PE32+ 12->28 dropped 30 C:\Windows\System32\AppVClient.exe, PE32+ 12->30 dropped 32 C:\Program Files (x86)\...\armsvc.exe, PE32 12->32 dropped 64 Binary is likely a compiled AutoIt script file 12->64 66 Writes to foreign memory regions 12->66 68 Maps a DLL or memory area into another process 12->68 18 svchost.exe 12->18         started        70 Found direct / indirect Syscall (likely to bypass EDR) 14->70 72 Creates files inside the volume driver (system volume information) 16->72 file6 signatures7 process8
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8321c0b6abc15f9feeef5021f4e37c4110e629cb64f7b0861b481e23ba86d54a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8321c0b6abc15f9feeef5021f4e37c4110e629cb64f7b0861b481e23ba86d54a/
Threat name:
Win32.Virus.Expiro
Create hunting rule
Status:
Malicious
First seen:
2024-08-11 23:36:43 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qmq4bnvlyfpz73xpkaq7jy34ieiomkolmt33bbq3japchoug2vfa._file
Verdict:
malicious
Similar samples:
3aab81ce8cf67ae704722e9b101df1dc8427c1c4cc062ba12f97963dd250e55b
Expiro
452d7f2afb6fbb3afa307419983194bd68e9a577fb47a02f6ba36c881f13c10d
Expiro
623ba3741a6f9e87aef1557d2373cdb0632b7357ba810b238836f99f09f80d92
Expiro
Result
Malware family:
n/a
Score:
  9/10
Tags:
credential_access discovery spyware stealer
Link:
https://tria.ge/reports/240818-twc3vasdpg/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Modifies Internet Explorer settings
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Program crash
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
AutoIT Executable
Drops file in System32 directory
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Credentials from Password Stores: Credentials from Web Browsers
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/11d53088-7ffd-482a-ad6e-b2ce5b75fd62
Unpacked files
SH256 hash:
5b581000cefd03314bd8360725f79ac8698c9cb531105cd4f63837edcf2dae6d
MD5 hash:
859a92f4af076f62b64208e8dc7dac50
SHA1 hash:
38de514481085a72c8da769fe6d4a02208b2ae5a
Detections:
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
Link:
https://www.unpac.me/results/62bd7350-f4de-4dac-93ff-8930509b6908/
Parent samples :
16c27de38c93b69fdf3a9b9998f819358db3e34d74cbd7c7b4c5d5abf373de28
5ab86bc81697e3fcea1b429fde33bc1a460f841ce7a55ca3a7533879cda13dc2
8321c0b6abc15f9feeef5021f4e37c4110e629cb64f7b0861b481e23ba86d54a
0f54e889dff4b6c6d8c1d984304299bc640fe3e0fa4b80b13b8d263c9034fff4
SH256 hash:
2b6bb9637f7134c2eccd8b4dc740d1445fac04710abc04f8823bce2b63042ac9
MD5 hash:
6fa615f675dd4a68b9a1d527effc5d80
SHA1 hash:
7901c4dad10c87456b8b06ec4bea3a50f822b934
Link:
https://www.unpac.me/results/62bd7350-f4de-4dac-93ff-8930509b6908/
SH256 hash:
a65c3c28f862c291d5a8e3392258711613c2a9d44cd6ca751ecf37db443f2a65
MD5 hash:
296a29fe6856cc307a16d51eb19df324
SHA1 hash:
3ed6b6a3c8a29481a415ff73a983b02c9b38bbfb
Link:
https://www.unpac.me/results/62bd7350-f4de-4dac-93ff-8930509b6908/
SH256 hash:
c9fd60112e9102e7295717dc29f13f71d3aab3ccc257f615b5b01367375a30fd
MD5 hash:
0ba096ca163ddefacf70632c481635a2
SHA1 hash:
a0ff9cc3d63e796c9f1a17181e5dcce0826d7a98
Detections:
AutoIT_Compiled
Create hunting rule
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/62bd7350-f4de-4dac-93ff-8930509b6908/
SH256 hash:
8321c0b6abc15f9feeef5021f4e37c4110e629cb64f7b0861b481e23ba86d54a
MD5 hash:
6427a83c16a75026c61e21ff5773fd20
SHA1 hash:
b59a67464d6ef0f9775051f9fce6257440ea658f
Detections:
AutoIT_Compiled
Create hunting rule
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/62bd7350-f4de-4dac-93ff-8930509b6908/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8321c0b6abc1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8321c0b6abc15f9feeef5021f4e37c4110e629cb64f7b0861b481e23ba86d54a

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SUSP_Imphash_Mar23_3
Create hunting rule
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects imphash often found in malware samples (Maximum 0,25% hits with search for 'imphash:x p:0' on Virustotal) = 99,75% hits
Reference:Internal Research

File information

The table below shows additional information about this malware sample such as delivery method and external references.

  
Delivery method
Other

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::CopySid
ADVAPI32.dll::FreeSid
ADVAPI32.dll::GetLengthSid
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::GetAce
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoCreateInstanceEx
ole32.dll::CoInitializeSecurity
ole32.dll::CreateStreamOnHGlobal
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringW
WINMM.dll::timeGetTime
WINMM.dll::waveOutSetVolume
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AddAce
ADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::DuplicateTokenEx
ADVAPI32.dll::GetAclInformation
ADVAPI32.dll::GetSecurityDescriptorDacl
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::CreateProcessAsUserW
KERNEL32.dll::CreateProcessW
ADVAPI32.dll::CreateProcessWithLogonW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
ADVAPI32.dll::OpenThreadToken
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::SetSystemPowerState
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
IPHLPAPI.DLL::IcmpCreateFile
KERNEL32.dll::CreateFileW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LogonUserW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetAddConnection2W
MPR.dll::WNetUseConnectionW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegConnectRegistryW
ADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::BlockInput
USER32.dll::CloseDesktop
USER32.dll::CreateMenu
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::FindWindowW

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