MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d26d1b6211cc74b45b838e9909400b18a2866054ea0452ce8ff420593935b317. 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: 16


Intelligence 16 IOCs YARA 15 File information Comments
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SHA256 hash: d26d1b6211cc74b45b838e9909400b18a2866054ea0452ce8ff420593935b317
SHA3-384 hash: 11b19f462c4d86e5249a855206393fe7b8525766c8a6c57976788a8bbc5abab8b9727a3d9dd8f70f14d2098d2afe293a
SHA1 hash: 39bb571af117b164c63e463d717a43447f819530
MD5 hash: 56aeedf2001eee4f8265797c68d94f8d
humanhash: tennessee-muppet-illinois-oxygen
File name:Request for Quotation 2170032137 PDF.exe
Download: download sample
Signature Expiro
Create hunting rule
File size:1'773'056 bytes
First seen:2025-03-19 07:54:16 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:pM0c++OCvkGs9Faal8F41ihcC/YKLNiXicJFFRGNzj3:OB3vkJ9N8m1iGuz7wRGpj3
Threatray 29 similar samples on MalwareBazaar
TLSH T1AE85E02263DDC360CB769133BF69B7016EBF7C614630B85B2F881D7DA960162162D7A3
TrID 32.2% (.EXE) Win64 Executable (generic) (10522/11/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4504/4/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter Anonymous
Tags:exe Expiro

Intelligence

File Origin
# of uploads :
1
# of downloads :
446
Origin country :
PL PL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Request for Quotation 2170032137 PDF.exe
Verdict:
Malicious activity
Analysis date:
2025-03-19 07:59:28 UTC
Tags:
sinkhole m0yv
Link:
https://app.any.run/tasks/a05c7a93-64fc-42a5-ac2f-366c2e1ef3f1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.Expiro-1.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Win32.Expiro-2.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67da81ec08116ce425727046
Tags:
autoit emotet expiro virut
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a window
Modifying an executable file
Launching a service
Searching for synchronization primitives
Modifying a system executable file
Launching a process
Connection attempt to an infection source
Loading a system driver
Creating a file in the system32 subdirectories
Sending an HTTP GET request to an infection source
Modifying a system file
Creating a file in the %temp% directory
Enabling autorun for a service
Query of malicious DNS domain
Enabling autorun with the shell\open\command registry branches
Infecting executable files
Sending an HTTP POST request to an infection source
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context autoit compiled-script fingerprint keylogger lolbin microsoft_visual_cc packed packed packer_detected wscript
Link:
https://www.filescan.io/uploads/67da786201edd28374b4327f/reports/d1cca8ca-6d1e-4a04-935b-f561d54bda7f/overview
Verdict:
Malicious
Labled as:
Expiro.Generic
Link:
https://www.hybrid-analysis.com/sample/d26d1b6211cc74b45b838e9909400b18a2866054ea0452ce8ff420593935b317
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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/450fc166-7df2-45a6-b8c0-aa06cc28615c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
rans.spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1642618
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
Creates files inside the volume driver (system volume information)
Deletes shadow drive data (may be related to ransomware)
Drops executable to a common third party application directory
Found direct / indirect Syscall (likely to bypass EDR)
Infects executable files (exe, dll, sys, html)
Initial sample is a PE file and has a suspicious name
Joe Sandbox ML detected suspicious sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queries random domain names (often used to prevent blacklisting and sinkholes)
Queues an APC in another process (thread injection)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1642618 Sample: Request for Quotation 21700... Startdate: 19/03/2025 Architecture: WINDOWS Score: 100 50 www.stakemask.xyz 2->50 52 www.publicblockchain.xyz 2->52 54 105 other IPs or domains 2->54 70 Suricata IDS alerts for network traffic 2->70 72 Antivirus detection for URL or domain 2->72 74 Antivirus detection for dropped file 2->74 78 9 other signatures 2->78 10 armsvc.exe 1 2->10         started        15 Request for Quotation 2170032137 PDF.exe 3 2->15         started        17 elevation_service.exe 2->17         started        19 15 other processes 2->19 signatures3 76 Performs DNS queries to domains with low reputation 52->76 process4 dnsIp5 56 dlynankz.biz 85.214.228.140, 49784, 80 STRATOSTRATOAGDE Germany 10->56 58 gjogvvpsf.biz 208.117.43.225, 49748, 49758, 49816 STEADFASTUS United States 10->58 64 17 other IPs or domains 10->64 36 C:\Windows\System32\wbengine.exe, PE32+ 10->36 dropped 38 C:\Windows\System32\wbem\WmiApSrv.exe, PE32+ 10->38 dropped 40 C:\Windows\System32\vds.exe, PE32+ 10->40 dropped 48 130 other malicious files 10->48 dropped 92 Drops executable to a common third party application directory 10->92 94 Infects executable files (exe, dll, sys, html) 10->94 60 acwjcqqv.biz 13.213.51.196, 49711, 49713, 49721 AMAZON-02US United States 15->60 62 ywffr.biz 52.11.240.239, 49710, 49712, 49714 AMAZON-02US United States 15->62 42 C:\Windows\System32\alg.exe, PE32+ 15->42 dropped 44 C:\Windows\System32\AppVClient.exe, PE32+ 15->44 dropped 46 C:\Program Files (x86)\...\armsvc.exe, PE32 15->46 dropped 96 Binary is likely a compiled AutoIt script file 15->96 98 Writes to foreign memory regions 15->98 100 Maps a DLL or memory area into another process 15->100 21 svchost.exe 15->21         started        102 Found direct / indirect Syscall (likely to bypass EDR) 17->102 104 Creates files inside the volume driver (system volume information) 19->104 file6 signatures7 process8 signatures9 80 Maps a DLL or memory area into another process 21->80 24 JHafvhydouNovF.exe 21->24 injected process10 signatures11 82 Found direct / indirect Syscall (likely to bypass EDR) 24->82 27 mfpmp.exe 24->27         started        process12 signatures13 84 Tries to steal Mail credentials (via file / registry access) 27->84 86 Tries to harvest and steal browser information (history, passwords, etc) 27->86 88 Modifies the context of a thread in another process (thread injection) 27->88 90 3 other signatures 27->90 30 JHafvhydouNovF.exe 27->30 injected 34 firefox.exe 27->34         started        process14 dnsIp15 66 www.dresses-executive.sbs 199.59.243.160, 49770, 49773, 49776 BODIS-NJUS United States 30->66 68 www.dappbtc.xyz 13.248.169.48, 49737, 49754, 49757 AMAZON-02US United States 30->68 106 Found direct / indirect Syscall (likely to bypass EDR) 30->106 signatures16
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d26d1b6211cc74b45b838e9909400b18a2866054ea0452ce8ff420593935b317
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d26d1b6211cc74b45b838e9909400b18a2866054ea0452ce8ff420593935b317/
Threat name:
Win32.Virus.Expiro
Create hunting rule
Status:
Malicious
First seen:
2025-03-18 16:06:42 UTC
File Type:
PE (Exe)
Extracted files:
27
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2jwrwyqrzr2liw4dr2mqsqaldcrimycu5icfftup6qqfsojvwmlq._file
Verdict:
malicious
Label(s):
expiro
Create hunting rule
m0yv
Create hunting rule
Similar samples:
0b3ad575168e0457905f19bb5304a8ea8cce461d7b1ebd0964d1171374271e47
Expiro
301dc94eb5d63a0fcd4a53c6b378d5d20ae42d0e56e0a5ab584f0baa59b5c8d6
Expiro
3a4bf749beed4f07deb352b6e0faf28c5c2f28d62374a8bbb3eeeb67b1096851
Expiro
463a99c4d82f346dd9cb1236df6c6acd9dc5f5df50467848efa167b59c635120
Expiro
a06f961f856857eea5b506b9bbf220df937bf7778246cc72e502c451e5311621
Expiro
error
Expiro
+ 19 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery spyware stealer
Link:
https://tria.ge/reports/250319-jr7fsatyfs/
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
Enumerates physical storage devices
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
Verdict:
Malicious
Tags:
trojan expiro
YARA:
SUSP_Imphash_Mar23_3
Link:
https://app.threat.zone/submission/45883aa1-abda-4fd1-b642-86a81f6985d4
Unpacked files
SH256 hash:
d26d1b6211cc74b45b838e9909400b18a2866054ea0452ce8ff420593935b317
MD5 hash:
56aeedf2001eee4f8265797c68d94f8d
SHA1 hash:
39bb571af117b164c63e463d717a43447f819530
Link:
https://www.unpac.me/results/741a29cd-bc7c-4900-b8c0-f6d6bc9063c4/
SH256 hash:
ddd3b962894a7adef91073b3e415ba42978ff4c12651bd6d533fb156c3768253
MD5 hash:
e473d6f8d234b5fb04cbac49ac7c7df0
SHA1 hash:
d24c96bfca0d07dac703137594f61b68a4520692
Link:
https://www.unpac.me/results/741a29cd-bc7c-4900-b8c0-f6d6bc9063c4/
Parent samples :
a06f961f856857eea5b506b9bbf220df937bf7778246cc72e502c451e5311621
301dc94eb5d63a0fcd4a53c6b378d5d20ae42d0e56e0a5ab584f0baa59b5c8d6
5cb84af56a24dbe7fb79678b206f3d9b6721cd7291d6294b1d5e189a1db865eb
463a99c4d82f346dd9cb1236df6c6acd9dc5f5df50467848efa167b59c635120
ed8c310c0eda6f8ec0e52a6ffa791d01dc7b46b9300db8464511cb9d49cc5fd2
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d26d1b6211cc/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/d26d1b6211cc74b45b838e9909400b18a2866054ea0452ce8ff420593935b317

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:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

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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