MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4806273a80972eb1dcfba783569590fc35c6533659e92fc9389b2c3412ee7bf. 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: 16


Intelligence 16 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c4806273a80972eb1dcfba783569590fc35c6533659e92fc9389b2c3412ee7bf
SHA3-384 hash: a967d8a6de0146738649c8608fe787ca9092470a7db89ab3bbf7aff0e4bdcbc3ecd6cb22d7200f63b2cf330b7a8498f1
SHA1 hash: 92f93441416d7d4806e379ea17899996f71a42b4
MD5 hash: c9363c0f01912907d337806ef10acb9b
humanhash: july-bravo-helium-helium
File name:Payment details.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:983'040 bytes
First seen:2025-05-27 10:38:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:0whggYAPWfahpeKqvBTNlei6CSeUEOU69iPZdZ44dgYf5TjhzoLlkUjDYtLC:BZPLlQpc1PEA0dbdgk5Tj+eUcL
TLSH T16C25DF0026A88B55C03943B00950C2B21B767D5A662BE34AFECE3CEBBF7A7155B57707
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
dhash icon 13ccc8ccccc8cc13 (8 x Formbook, 3 x SnakeKeylogger, 1 x Loki)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
440
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Payment details.exe
Verdict:
Malicious activity
Analysis date:
2025-05-27 10:44:47 UTC
Tags:
netreactor formbook xloader
Link:
https://app.any.run/tasks/8da9eba2-acea-494a-bc46-02cb982506fc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/5826/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3338.14204.165.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=683597edacf88f5815e78e65
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/68359657fd02ed5e058a05d6/reports/ae528c20-635a-4a3c-8712-64118830a12f/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/c4806273a80972eb1dcfba783569590fc35c6533659e92fc9389b2c3412ee7bf
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c6f4f987-3133-43ff-90d7-66e1eb742603
Result
Threat name:
FormBook, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1699735
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
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
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)
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)
Uses threadpools to delay analysis
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1699735 Sample: Payment details.exe Startdate: 27/05/2025 Architecture: WINDOWS Score: 100 29 www.xxxvideosbox.xyz 2->29 31 www.vrpin.xyz 2->31 33 14 other IPs or domains 2->33 41 Multi AV Scanner detection for submitted file 2->41 43 Yara detected PureLog Stealer 2->43 45 Yara detected FormBook 2->45 49 6 other signatures 2->49 10 Payment details.exe 3 2->10         started        signatures3 47 Performs DNS queries to domains with low reputation 31->47 process4 file5 27 C:\Users\user\...\Payment details.exe.log, ASCII 10->27 dropped 59 Injects a PE file into a foreign processes 10->59 14 Payment details.exe 10->14         started        signatures6 process7 signatures8 61 Maps a DLL or memory area into another process 14->61 17 Vr1IX8gDVJrD.exe 14->17 injected process9 process10 19 Utilman.exe 13 17->19         started        signatures11 51 Tries to steal Mail credentials (via file / registry access) 19->51 53 Tries to harvest and steal browser information (history, passwords, etc) 19->53 55 Modifies the context of a thread in another process (thread injection) 19->55 57 3 other signatures 19->57 22 TscBTYVcNI.exe 19->22 injected 25 firefox.exe 19->25         started        process12 dnsIp13 35 www.ax777.top 160.124.31.74, 49710, 49711, 49712 POWERLINE-AS-APPOWERLINEDATACENTERHK South Africa 22->35 37 www.xxxvideosbox.xyz 91.216.220.20, 49692, 80 OLIMPKZ-NETKZ Kazakhstan 22->37 39 6 other IPs or domains 22->39
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c4806273a80972eb1dcfba783569590fc35c6533659e92fc9389b2c3412ee7bf
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c4806273a80972eb1dcfba783569590fc35c6533659e92fc9389b2c3412ee7bf/
Threat name:
Win32.Trojan.Kepavll
Create hunting rule
Status:
Malicious
First seen:
2025-05-20 19:54:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
28 of 36 (77.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ysage45ibfzowhopxj4dk2kzb7bvyzjtmwpjf7etrgzmgqjo467q._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/250527-mp2djadj7w/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/09457522-7b4d-4777-8f01-a70e077b2007
Unpacked files
SH256 hash:
c4806273a80972eb1dcfba783569590fc35c6533659e92fc9389b2c3412ee7bf
MD5 hash:
c9363c0f01912907d337806ef10acb9b
SHA1 hash:
92f93441416d7d4806e379ea17899996f71a42b4
Link:
https://www.unpac.me/results/3918e0da-fda4-4703-ae46-5030c2b2df00/
SH256 hash:
cc20d9969510195970a717f0ad43fe36afbba339e916e3d5946e2894d6924be7
MD5 hash:
6217d01f84e3d1414eea7d4a877fdaa3
SHA1 hash:
18e2a7f7e7415459e33e2da30cdef3e9cfc47eaa
Link:
https://www.unpac.me/results/3918e0da-fda4-4703-ae46-5030c2b2df00/
SH256 hash:
968ea75e2849cbb31bb868a85ffc821332ed9c645d7ab6219d8f8708df188c1b
MD5 hash:
d281608bed0deed67510371a058f4b65
SHA1 hash:
56f9af60944e292a73a6a786f44f8214a6ad080d
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/3918e0da-fda4-4703-ae46-5030c2b2df00/
SH256 hash:
05f9ce752a29c05fc70056515513815fb518bd01246a735c7cc1bc0f40c9b089
MD5 hash:
960cd878150977a125941f6caa794ca0
SHA1 hash:
85508296a194593bea688321e9c203a7a561088e
Link:
https://www.unpac.me/results/3918e0da-fda4-4703-ae46-5030c2b2df00/
SH256 hash:
2839232913a517c8de231003159af59bbe29e6cc5b18877d83478a7006ed3321
MD5 hash:
89ac3b7ab74a781fdc0c202af9839b72
SHA1 hash:
9c927caf6f7d663c1d2111bd96ab43b12736e26e
Link:
https://www.unpac.me/results/3918e0da-fda4-4703-ae46-5030c2b2df00/
SH256 hash:
c53fdeeffcfe80e691b576902d93c000836ad11b8efbb1d180830e6accdc7e5d
MD5 hash:
ab0c72991a3a4d6a6a0a97cc8dc70b61
SHA1 hash:
bc90f6e968933735446e770c263f558b4bc9e6f6
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/3918e0da-fda4-4703-ae46-5030c2b2df00/
Parent samples :
e49c0602bd2fffa76071700c36fb4ff11778f755792155d7f75b00a019e82702
c4806273a80972eb1dcfba783569590fc35c6533659e92fc9389b2c3412ee7bf
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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
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 c4806273a80972eb1dcfba783569590fc35c6533659e92fc9389b2c3412ee7bf

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/5826/

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