MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 653e202a0b1a85eccdd95702ebcf2e54035df05616950307d923ba0450bdcb10. 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: 18


Intelligence 18 IOCs YARA 6 File information Comments

SHA256 hash: 653e202a0b1a85eccdd95702ebcf2e54035df05616950307d923ba0450bdcb10
SHA3-384 hash: 8d6f5cfd7d3a1d960df63c5750c41c4ead0d28c7ab7ae3e2071d075eab4f560e10f36495d16462d9064fbfd94996b7a0
SHA1 hash: 7b21aba231961578fd4ccbc03acf5a6cc44e71e9
MD5 hash: e89aa0cd40e396f489715fd03e7bd403
humanhash: cold-carbon-magazine-king
File name:RE New PO1556727762.exe
Download: download sample
Signature Formbook
File size:764'936 bytes
First seen:2025-04-29 13:37:12 UTC
Last seen:2025-04-30 07:22:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:heGaKsGDdqlBGWd+r8Vs2rzMB0bBLX1TJz1OnUf3roFs7XMLLUcRkR:NqlF+QOj271NpOnUf6s7XB
Threatray 4'972 similar samples on MalwareBazaar
TLSH T16AF4F0556268E207D4EA6B742BB1F13413BD6EEA7800C65A6FDA3CFF7D76A040D09183
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter threatcat_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
451
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RE New PO1556727762.exe
Verdict:
Malicious activity
Analysis date:
2025-04-29 13:40:35 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
spawn shell msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
entropy expired-cert invalid-signature obfuscated packed packed packer_detected signed
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1677357 Sample: RE New PO1556727762.exe Startdate: 29/04/2025 Architecture: WINDOWS Score: 100 59 www.xiyfc.info 2->59 61 www.tv5pp.top 2->61 63 9 other IPs or domains 2->63 77 Suricata IDS alerts for network traffic 2->77 79 Found malware configuration 2->79 81 Malicious sample detected (through community Yara rule) 2->81 83 11 other signatures 2->83 11 RE New PO1556727762.exe 7 2->11         started        15 aDLIXWcJc.exe 5 2->15         started        signatures3 process4 file5 53 C:\Users\user\AppData\Roaming\aDLIXWcJc.exe, PE32 11->53 dropped 55 C:\Users\user\AppData\Local\...\tmpD040.tmp, XML 11->55 dropped 57 C:\Users\user\...\RE New PO1556727762.exe.log, ASCII 11->57 dropped 85 Adds a directory exclusion to Windows Defender 11->85 17 vbc.exe 11->17         started        20 powershell.exe 23 11->20         started        22 powershell.exe 23 11->22         started        24 schtasks.exe 1 11->24         started        87 Multi AV Scanner detection for dropped file 15->87 26 vbc.exe 15->26         started        28 schtasks.exe 15->28         started        signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 17->67 69 Maps a DLL or memory area into another process 17->69 71 Sample uses process hollowing technique 17->71 75 3 other signatures 17->75 30 explorer.exe 85 2 17->30 injected 73 Loading BitLocker PowerShell Module 20->73 34 conhost.exe 20->34         started        36 WmiPrvSE.exe 20->36         started        38 conhost.exe 22->38         started        40 conhost.exe 24->40         started        42 conhost.exe 28->42         started        process9 dnsIp10 65 www.loot.tel 195.253.75.114, 49697, 80 KNIPPWORLDWIDE Germany 30->65 97 System process connects to network (likely due to code injection or exploit) 30->97 44 colorcpl.exe 30->44         started        47 svchost.exe 30->47         started        signatures11 process12 signatures13 89 Modifies the context of a thread in another process (thread injection) 44->89 91 Maps a DLL or memory area into another process 44->91 93 Tries to detect virtualization through RDTSC time measurements 44->93 95 Switches to a custom stack to bypass stack traces 44->95 49 cmd.exe 44->49         started        process14 process15 51 conhost.exe 49->51         started       
Threat name:
Win32.Backdoor.FormBook
Status:
Malicious
First seen:
2025-04-29 07:46:59 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:bi14 discovery execution rat spyware stealer trojan
Behaviour
Gathers network information
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Uses the VBS compiler for execution
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
653e202a0b1a85eccdd95702ebcf2e54035df05616950307d923ba0450bdcb10
MD5 hash:
e89aa0cd40e396f489715fd03e7bd403
SHA1 hash:
7b21aba231961578fd4ccbc03acf5a6cc44e71e9
SH256 hash:
f0d002ce08f709266be300090f51d1db62a590bc8d2d6f9106b4150f3e6f79de
MD5 hash:
5ff01ba4eaab52fef03776b1a75270b3
SHA1 hash:
a1201824f88dd44a46be99177486db33230e2d2c
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
ef95a02ea91377eb567b7c9a651608e9c2dee8ff798657968a06324ff953c324
MD5 hash:
4db5fd6c530c9f631d1cede7b77314ca
SHA1 hash:
ec0a08c09cbe1fc45f16eb9ebd7fb4a6240b351d
SH256 hash:
d95af64d63e35a6a0c7962b9cf6a1f359f4588e85985129d0da628eb08dc7d77
MD5 hash:
2080a63b6709fdd1d070de2fd2017ed7
SHA1 hash:
67e0b2512ab173b34ff436e5c42552973ff0277e
Detections:
win_formbook_w0 win_formbook_g0 win_formbook_auto FormBook Windows_Trojan_Formbook Formbook
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:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Author:malware-lu
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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.

Malspam

Formbook

Executable exe 653e202a0b1a85eccdd95702ebcf2e54035df05616950307d923ba0450bdcb10

(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

Comments