MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 863ea90bd372975fb74fd3e4b6becc7fce097c40759a3fc486eb09188280fa28. 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



Formbook


Vendor detections: 14


Intelligence 14 IOCs YARA 16 File information Comments

SHA256 hash: 863ea90bd372975fb74fd3e4b6becc7fce097c40759a3fc486eb09188280fa28
SHA3-384 hash: 14a1bbcb0afdbf7fbe7be0f0859f796711837db20bcb6f4b0b39345d5725083033c0d1e760e20098728cbaf167a9b4cf
SHA1 hash: ae10e17b8210ca9bc1c4a8a177cab837954008a0
MD5 hash: a6e1d294c9d18cbf7cd69f41fb9bb67e
humanhash: kitten-lactose-violet-paris
File name:NEW PO.exe
Download: download sample
Signature Formbook
File size:721'408 bytes
First seen:2025-05-06 08:57:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ef471c0edf1877cd5a881a6a8bf647b9 (74 x Formbook, 33 x Loki, 29 x Loda)
ssdeep 12288:aOv5jKhsfoPA+yeVKUCUxP4C902bdRtJJPiDm/tmMuEuaBkH3bfMKoifHraIhnag:aq5TfcdHj4fmbQcmxEifxzfeIhag
TLSH T167E423946588CCA2EE527335C07ECF6515793B32CD45AB0C1B89D3566833743AAE2B3E
TrID 33.9% (.EXE) UPX compressed Win32 Executable (27066/9/6)
33.3% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
13.1% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.6% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
412
Origin country :
HU HU
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.1%
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Searching for the window
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit compiled-script microsoft_visual_cc packed packed packed packer_detected upx
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
Found direct / indirect Syscall (likely to bypass EDR)
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
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1681967 Sample: NEW PO.exe Startdate: 06/05/2025 Architecture: WINDOWS Score: 100 28 www.servisyeni.xyz 2->28 30 www.tieniu09.xyz 2->30 32 15 other IPs or domains 2->32 42 Suricata IDS alerts for network traffic 2->42 44 Antivirus detection for URL or domain 2->44 46 Multi AV Scanner detection for submitted file 2->46 50 3 other signatures 2->50 10 NEW PO.exe 2 2->10         started        signatures3 48 Performs DNS queries to domains with low reputation 30->48 process4 signatures5 62 Binary is likely a compiled AutoIt script file 10->62 64 Writes to foreign memory regions 10->64 66 Maps a DLL or memory area into another process 10->66 13 svchost.exe 10->13         started        process6 signatures7 68 Maps a DLL or memory area into another process 13->68 16 ihaj3x4rBj601efN4n3n6M.exe 13->16 injected process8 signatures9 40 Found direct / indirect Syscall (likely to bypass EDR) 16->40 19 dxdiag.exe 13 16->19         started        process10 signatures11 52 Tries to steal Mail credentials (via file / registry access) 19->52 54 Tries to harvest and steal browser information (history, passwords, etc) 19->54 56 Modifies the context of a thread in another process (thread injection) 19->56 58 3 other signatures 19->58 22 ihaj3x4rBj601efN4n3n6M.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 34 www.jinzebengye.net 165.3.35.228, 49688, 49689, 49690 PEGTECHINCUS South Africa 22->34 36 www.turbonest.live 199.192.23.195, 49712, 49713, 49714 NAMECHEAP-NETUS United States 22->36 38 8 other IPs or domains 22->38 60 Found direct / indirect Syscall (likely to bypass EDR) 22->60 signatures14
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2025-05-01 01:07:48 UTC
File Type:
PE (Exe)
Extracted files:
43
AV detection:
23 of 36 (63.89%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
unc_loader_036 formbook autoit
Similar samples:
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery upx
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
UPX packed file
AutoIT Executable
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
863ea90bd372975fb74fd3e4b6becc7fce097c40759a3fc486eb09188280fa28
MD5 hash:
a6e1d294c9d18cbf7cd69f41fb9bb67e
SHA1 hash:
ae10e17b8210ca9bc1c4a8a177cab837954008a0
SH256 hash:
38ae6c2a5f59cdbc24ddcacb681565231aa372bc2dfd22be4ee7facde9a99ba8
MD5 hash:
8a9b84babc122e5c530b13d8684bc9fc
SHA1 hash:
e53a752e6bb0773f33b2ca1af05fb46afd0c9be0
Detections:
AutoIT_Compiled
SH256 hash:
811ce56a7adaa9180cd0cf56703967fecb1302c08b6df6468a1460526552cd80
MD5 hash:
e68ca81b846f64d41816e136c9605b78
SHA1 hash:
a4d4d0f15ffe1b1f0fff064b129ca678750e119e
SH256 hash:
2caca366d0f40c80dae2003f41eb98787e51cbc6b7985cc3251aa962d53b7fc4
MD5 hash:
50bac6928d7a82861f13dc11a10b180a
SHA1 hash:
60445dceae1c1a7ca234cb040f053d9c860ebcb8
Detections:
win_formbook_g0
Please note that we are no longer able to provide a coverage score for Virus Total.

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:DebuggerCheck__GlobalFlags
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Formbook
Author:kevoreilly
Description:Formbook Payload
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Author:malware-lu
Rule name:upx_largefile
Author:k3nr9

File information


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

Malspam

Formbook

Executable exe 863ea90bd372975fb74fd3e4b6becc7fce097c40759a3fc486eb09188280fa28

(this sample)

  
Delivery method
Distributed via e-mail attachment

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
Reviews
IDCapabilitiesEvidence
MULTIMEDIA_APICan Play MultimediaWINMM.dll::timeGetTime
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AddAce
WIN_BASE_APIUses Win Base APIKERNEL32.DLL::LoadLibraryA
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetUseConnectionW

Comments