MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a779cf3623ccd0238d0b5d3f01dcc911e1538a1c0a656442234b4c3335453607. 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: 19


Intelligence 19 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a779cf3623ccd0238d0b5d3f01dcc911e1538a1c0a656442234b4c3335453607
SHA3-384 hash: 4bcc4b4419b04c9e811c7e4cd8fc44c6f74e744f1d303bf00a533855d1210433bc7b146b9f149f9e750b6cb5e78443d3
SHA1 hash: 5d1e9632d16517c01abc9e13287737e56c801f9e
MD5 hash: 4b6b3eecae0bb99876beaad2f7722b1d
humanhash: eight-triple-july-green
File name:PO#D2500603pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'097'216 bytes
First seen:2025-03-06 13:54:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:AieeMlw+vz30DwVKVarZa29EC3rIMLP1cPy2ZM9DRgBWKQDq:n+vzEDmFz7I6NcPyUM9sfQD
Threatray 4'902 similar samples on MalwareBazaar
TLSH T1883512B8B711E8AECCD7D6328D24EE3252666D5E930B831385E7CCEFBD0C5129B141A5
TrID 28.5% (.EXE) Win64 Executable (generic) (10522/11/4)
17.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
13.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
12.2% (.EXE) Win32 Executable (generic) (4504/4/1)
5.6% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
dhash icon 10b268b296b2b2b2 (7 x Formbook, 4 x MassLogger, 4 x RemcosRAT)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
485
Origin country :
US US
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
PO#D2500603pdf.exe
Verdict:
Malicious activity
Analysis date:
2025-03-06 13:57:36 UTC
Tags:
formbook stealer xloader
Link:
https://app.any.run/tasks/65009d99-4bb4-48d8-abbc-225764fcf4de

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.SpywareX-gen.16474.25601.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67c9ab2bc8d04e92a4bf60b7
Tags:
shell msil remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for synchronization primitives
Creating a window
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching cmd.exe command interpreter
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67c9a9463c5f644bd94644d5/reports/e9716eb2-293f-4c5a-aabb-37a94ee1b747/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a779cf3623ccd0238d0b5d3f01dcc911e1538a1c0a656442234b4c3335453607
Result
Verdict:
SUSPICIOUS
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/ff51c788-6ea2-4bbb-bf70-1484e6a85d4f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1631004
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
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
PE file contains section with special chars
PE file has nameless sections
Performs DNS queries to domains with low reputation
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1631004 Sample: PO#D2500603pdf.exe Startdate: 06/03/2025 Architecture: WINDOWS Score: 100 61 www.enelog.xyz 2->61 63 www.oonlightshadow.shop 2->63 65 11 other IPs or domains 2->65 81 Suricata IDS alerts for network traffic 2->81 83 Found malware configuration 2->83 85 Malicious sample detected (through community Yara rule) 2->85 89 12 other signatures 2->89 11 PO#D2500603pdf.exe 7 2->11         started        15 ORzEVlSLrGXjZ.exe 5 2->15         started        signatures3 87 Performs DNS queries to domains with low reputation 61->87 process4 file5 53 C:\Users\user\AppData\...\ORzEVlSLrGXjZ.exe, PE32 11->53 dropped 55 C:\...\ORzEVlSLrGXjZ.exe:Zone.Identifier, ASCII 11->55 dropped 57 C:\Users\user\AppData\Local\...\tmpD096.tmp, XML 11->57 dropped 59 C:\Users\user\...\PO#D2500603pdf.exe.log, ASCII 11->59 dropped 91 Uses schtasks.exe or at.exe to add and modify task schedules 11->91 93 Adds a directory exclusion to Windows Defender 11->93 95 Tries to detect virtualization through RDTSC time measurements 11->95 97 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->97 17 PO#D2500603pdf.exe 11->17         started        20 powershell.exe 22 11->20         started        22 powershell.exe 23 11->22         started        24 schtasks.exe 1 11->24         started        99 Multi AV Scanner detection for dropped file 15->99 101 Injects a PE file into a foreign processes 15->101 103 Switches to a custom stack to bypass stack traces 15->103 26 ORzEVlSLrGXjZ.exe 15->26         started        28 schtasks.exe 15->28         started        signatures6 process7 signatures8 69 Modifies the context of a thread in another process (thread injection) 17->69 71 Maps a DLL or memory area into another process 17->71 73 Sample uses process hollowing technique 17->73 75 Queues an APC in another process (thread injection) 17->75 30 explorer.exe 53 1 17->30 injected 77 Loading BitLocker PowerShell Module 20->77 34 conhost.exe 20->34         started        36 WmiPrvSE.exe 20->36         started        38 conhost.exe 22->38         started        40 conhost.exe 24->40         started        79 Found direct / indirect Syscall (likely to bypass EDR) 26->79 42 conhost.exe 28->42         started        process9 dnsIp10 67 www.fath.shop 46.30.57.17, 56797, 80 MITTWALD-ASMittwaldCMServiceGmbHundCoKGDE Germany 30->67 113 System process connects to network (likely due to code injection or exploit) 30->113 44 control.exe 30->44         started        47 explorer.exe 30->47         started        signatures11 process12 signatures13 105 Modifies the context of a thread in another process (thread injection) 44->105 107 Maps a DLL or memory area into another process 44->107 109 Tries to detect virtualization through RDTSC time measurements 44->109 111 Switches to a custom stack to bypass stack traces 44->111 49 cmd.exe 44->49         started        process14 process15 51 conhost.exe 49->51         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a779cf3623ccd0238d0b5d3f01dcc911e1538a1c0a656442234b4c3335453607
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a779cf3623ccd0238d0b5d3f01dcc911e1538a1c0a656442234b4c3335453607/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u5446nrdztichdillu7qdxgjchqvhcq4bjswiqrdjngdgnkfgydq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unc_loader_037
Create hunting rule
Similar samples:
1e26f69f063b034aff856a4b9bb1680824e61ebf28867a36fa30e2b3e1727526
Formbook
205e98d299b32e102e3d6fadb9659f713601f8f713be02cec1ec0f437d3be075
Formbook
4ef83ac7a3bdee1a742de8de749c5afa4747acc20f8937301dcba291d1ef83d7
Formbook
6be92b0d491f6d5d7f65e01a3336aac1155f091ad6def08b541e07b68eda3bb4
Formbook
6f706398207b1fd3a00de5f859dc840cf8e100175fdabe260ebb96db5980f03c
Formbook
acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65
Formbook
d0cff61258d18def7ad7129368ecaccf5d2389eb1fd79b6cbb411c65c5783e0d
Formbook
error
Formbook
f42de693aaae005ec4dcf3514621f8573b422f3a3ad1bb1af370acc7c5cba233
Formbook
+ 4'892 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:a03d discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250306-q76bzszrz8/
Behaviour
Modifies registry class
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5b4134c6-ce8e-406d-a468-6536e410f9f4
Unpacked files
SH256 hash:
a779cf3623ccd0238d0b5d3f01dcc911e1538a1c0a656442234b4c3335453607
MD5 hash:
4b6b3eecae0bb99876beaad2f7722b1d
SHA1 hash:
5d1e9632d16517c01abc9e13287737e56c801f9e
Link:
https://www.unpac.me/results/ce48eca6-ad37-4b57-9527-54fe09e19a49/
SH256 hash:
52ffacd22ab91524ff5f24910eab9bdfb84852041bdf30921b1de854588b8cba
MD5 hash:
5e55202b92a2e366b8bc24cf3e87d184
SHA1 hash:
1769647f410ed9fc020389faee85c4da91f90f66
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/ce48eca6-ad37-4b57-9527-54fe09e19a49/
SH256 hash:
0881eba722141fd3bfa542d562bb4e2774c6d6ae2cd8a70e961113c52dbbd434
MD5 hash:
c00bea7a550655536060a81bcb3c9fcf
SHA1 hash:
fbfdd0e7107cc1165df88e98550c77a638cf1385
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/ce48eca6-ad37-4b57-9527-54fe09e19a49/
SH256 hash:
4f59ffd1f9e8b2088120692bae2d99ddf906cab5d98435baad7ac4073ca0fe81
MD5 hash:
6782ca1720c77e90ba84e9ab5ba4f07d
SHA1 hash:
79e819dde4a4b29ca3a221f89cf73f1fd818f1de
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/ce48eca6-ad37-4b57-9527-54fe09e19a49/
Parent samples :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 family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a779cf3623cc/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a779cf3623ccd0238d0b5d3f01dcc911e1538a1c0a656442234b4c3335453607

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__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Malspam

Formbook

Executable exe a779cf3623ccd0238d0b5d3f01dcc911e1538a1c0a656442234b4c3335453607

(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 (GUARD_CF)high

Comments