MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 407e1cb8e679d920ea7b3369c2528a0a9c63380273e5ae2ef22f2934285c1d6d. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 407e1cb8e679d920ea7b3369c2528a0a9c63380273e5ae2ef22f2934285c1d6d
SHA3-384 hash: 76dc83d7d0514912a59c8e8b007885fbc92b4fc819f56a0e95429464da26e44dce12b64a1da9eb74656393450a651808
SHA1 hash: c03c820c6fc3f23157715d7313984fbcfa44d551
MD5 hash: 9734792ad870c24383830cbb1dc401fd
humanhash: yankee-tennessee-stairway-shade
File name:Payment Details.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:851'968 bytes
First seen:2025-08-08 03:27:59 UTC
Last seen:2025-08-29 17:17:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:PMyZLW9ihRidThTz1WacJdFwXs9hdhqoxJ:/ZLO3vTz1kdrr7
Threatray 4'238 similar samples on MalwareBazaar
TLSH T1F905F0223394D91BC11906F41651F3B037B46C97B820FE8A6EEA2D9F39A5FC486D6353
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
dhash icon e8d4f0e8e8f0d4f0 (3 x Formbook, 1 x DarkCloud, 1 x VIPKeylogger)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
70
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment Details.exe
Verdict:
No threats detected
Analysis date:
2025-08-08 03:29:24 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0619047e-321d-4953-affd-da90cd1f5229

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/19569/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3390.10039.1582.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68956ed411d7f9b979e672b1
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/407e1cb8e679d920ea7b3369c2528a0a9c63380273e5ae2ef22f2934285c1d6d
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/9c04e610-aa79-4a92-8bc3-5401273726f3
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1752762
Signature
.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)
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)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1752762 Sample: Payment Details.exe Startdate: 08/08/2025 Architecture: WINDOWS Score: 100 36 www.weixinqq1204.xyz 2->36 38 www.jojexa.xyz 2->38 40 20 other IPs or domains 2->40 48 Suricata IDS alerts for network traffic 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 Yara detected FormBook 2->52 56 4 other signatures 2->56 11 Payment Details.exe 3 2->11         started        signatures3 54 Performs DNS queries to domains with low reputation 38->54 process4 file5 34 C:\Users\user\...\Payment Details.exe.log, ASCII 11->34 dropped 66 Injects a PE file into a foreign processes 11->66 15 Payment Details.exe 11->15         started        18 Payment Details.exe 11->18         started        signatures6 process7 signatures8 68 Maps a DLL or memory area into another process 15->68 20 14zDX0piNgdhK.exe 15->20 injected process9 process10 22 grpconv.exe 13 20->22         started        signatures11 58 Tries to steal Mail credentials (via file / registry access) 22->58 60 Tries to harvest and steal browser information (history, passwords, etc) 22->60 62 Modifies the context of a thread in another process (thread injection) 22->62 64 3 other signatures 22->64 25 dtpL9K1MbfSBhO.exe 22->25 injected 28 chrome.exe 22->28         started        30 firefox.exe 22->30         started        process12 dnsIp13 42 www.suvorr.tokyo 46.37.111.21, 49736, 49737, 49738 Y-INTERNETGB Spain 25->42 44 www.weixinqq1204.xyz 47.76.172.57, 49724, 49725, 49726 VODAFONE-TRANSIT-ASVodafoneNZLtdNZ United States 25->44 46 13 other IPs or domains 25->46 32 WerFault.exe 4 28->32         started        process14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/407e1cb8e679d920ea7b3369c2528a0a9c63380273e5ae2ef22f2934285c1d6d
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable PDB Path PE (Portable Executable) SOS: 0.29 Win 32 Exe x86
Link:
https://app.malva.re/file/9734792ad870c24383830cbb1dc401fd
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/407e1cb8e679d920ea7b3369c2528a0a9c63380273e5ae2ef22f2934285c1d6d/
Verdict:
Malicious
Threat:
Trojan.MSIL.Taskun
Link:
https://tip.neiki.dev/file/407e1cb8e679d920ea7b3369c2528a0a9c63380273e5ae2ef22f2934285c1d6d
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-08-07 07:47:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
42
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ib7bzohgphmsb2t3gnu4euukbkoggoacops24lxsf4utikc4dvwq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
Similar samples:
1745c301e6a15413676f63dbef76e0582000b04cb1205a0ee9559178550c1225
Formbook
57fd4666f5ee7b31e8b02f6c31d0a33bb08f5eb1694a759b0b1aa95ec9fc0524
Formbook
d1a7c0ca70eb4da003a44a8eea966eea7610f21dfcffa7264be2ec56e8dc8591
Formbook
e598b89b04fa29abdfdad5eca57c05401680597c5999160bc2963bcb5c2cf4f3
Formbook
+ 4'228 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250808-d1e51aam9v/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
SmartAssembly .NET packer
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c1ea38d9-d445-4486-b548-2f9157126ca9
Unpacked files
SH256 hash:
407e1cb8e679d920ea7b3369c2528a0a9c63380273e5ae2ef22f2934285c1d6d
MD5 hash:
9734792ad870c24383830cbb1dc401fd
SHA1 hash:
c03c820c6fc3f23157715d7313984fbcfa44d551
Link:
https://www.unpac.me/results/85ccb437-7d32-4906-a9fa-a80f8ca8dd22/
SH256 hash:
dbe71bfe4540f42c4d0414d4760e1f38b659a35e71a33937f198c3f1b6826c83
MD5 hash:
4565a9ea3f85f14ee516815cc3ecae30
SHA1 hash:
0365d2e2aa07a62635ae3c34df3a5efca4b97a65
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/85ccb437-7d32-4906-a9fa-a80f8ca8dd22/
SH256 hash:
ecf416558f02b2d950840b92242cab6bd0f60f2398f9665aaf4b8174020e5e53
MD5 hash:
539e0ff67cc63c9b653ed14de1f4be6d
SHA1 hash:
2b96170796470a5c18aa2962ecedf72a398202fb
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/85ccb437-7d32-4906-a9fa-a80f8ca8dd22/
Parent samples :
1745c301e6a15413676f63dbef76e0582000b04cb1205a0ee9559178550c1225
e598b89b04fa29abdfdad5eca57c05401680597c5999160bc2963bcb5c2cf4f3
407e1cb8e679d920ea7b3369c2528a0a9c63380273e5ae2ef22f2934285c1d6d
SH256 hash:
929f07dc02c773e4bd51ce7405e2bc3d8460b0b2c3315875d7dc00a3c4814745
MD5 hash:
9a5507d165f8688348dad24bf793a9f9
SHA1 hash:
6cf4b8abe496742a573302805565bad9df84d1e8
Link:
https://www.unpac.me/results/85ccb437-7d32-4906-a9fa-a80f8ca8dd22/
SH256 hash:
d5382bbdde86d82811eaf1c8f460b96d5b6b37e64e57d1db37e5103d8c62d28a
MD5 hash:
cbca0304e7a007f4f1d55ae3b82b3695
SHA1 hash:
1f5dfc00e67f6aca751bef987cb2b4c38645fcbb
Link:
https://www.unpac.me/results/85ccb437-7d32-4906-a9fa-a80f8ca8dd22/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/407e1cb8e679/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/407e1cb8e679d920ea7b3369c2528a0a9c63380273e5ae2ef22f2934285c1d6d

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: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 407e1cb8e679d920ea7b3369c2528a0a9c63380273e5ae2ef22f2934285c1d6d

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/19569/

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