MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e5736df87221b67a2e2a614374e1d6353043b95e08448ea9260e103ab18a5c8d. 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 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e5736df87221b67a2e2a614374e1d6353043b95e08448ea9260e103ab18a5c8d
SHA3-384 hash: 1ad34bd0654b36becc5c5d49c2b082b90b5200bbfd7bd9bd963de12ce0e27d17eb91d04c0b60d0f20433056d4e891b18
SHA1 hash: 2b4520d7556495844b5f52d3f3a66d6f9657a38e
MD5 hash: 45595de94c06c3d7914383a1b0416ef0
humanhash: nineteen-friend-zulu-uranus
File name:Inquiry For An Urgent Supply.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:801'280 bytes
First seen:2025-09-19 07:55:48 UTC
Last seen:2025-10-09 14:20:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:V0MeD1oz4wnrcrLN3SSCeTk9h7l+CJ3GohjmUCu:Eez4wgPNNT8hp+Y3GKE
Threatray 1'299 similar samples on MalwareBazaar
TLSH T18B05F161636AEA01E4FA5FF00971C37007B5BD4EA921D21B1EEAACDF3936B901C54763
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 :
13
# of downloads :
99
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Inquiry For An Urgent Supply.pdf.exe
Verdict:
No threats detected
Analysis date:
2025-09-19 07:58:07 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/cafeba63-3adf-4d8a-b60b-8a797eff09ea

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/28279/
Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68cd0c98246a2631bd30fe35
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm fingerprint masquerade packed reconnaissance
Link:
https://www.filescan.io/uploads/68cd0c90254431b688d4b8af/reports/702e1253-9a13-4a26-8cd7-75145f3421ef/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/e5736df87221b67a2e2a614374e1d6353043b95e08448ea9260e103ab18a5c8d
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-19T05:16:00Z UTC
Last seen:
2025-09-19T05:16:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/e5736df87221b67a2e2a614374e1d6353043b95e08448ea9260e103ab18a5c8d/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/04e908ed-2f63-4a8e-aae1-bc78a0131131
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1780559
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)
Sigma detected: Suspicious Double Extension File Execution
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)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1780559 Sample: Inquiry For An Urgent Suppl... Startdate: 19/09/2025 Architecture: WINDOWS Score: 100 36 www.businesscudos.xyz 2->36 38 www.fastgpt.xyz 2->38 40 11 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 7 other signatures 2->56 11 Inquiry For An Urgent Supply.pdf.exe 3 2->11         started        signatures3 54 Performs DNS queries to domains with low reputation 38->54 process4 file5 34 Inquiry For An Urgent Supply.pdf.exe.log, ASCII 11->34 dropped 66 Injects a PE file into a foreign processes 11->66 15 Inquiry For An Urgent Supply.pdf.exe 11->15         started        signatures6 process7 signatures8 68 Maps a DLL or memory area into another process 15->68 18 fowpNJl9CTrs.exe 15->18 injected process9 process10 20 netbtugc.exe 13 18->20         started        23 verifiergui.exe 18->23         started        signatures11 58 Tries to steal Mail credentials (via file / registry access) 20->58 60 Tries to harvest and steal browser information (history, passwords, etc) 20->60 62 Modifies the context of a thread in another process (thread injection) 20->62 64 3 other signatures 20->64 25 U2xe6fA7DqCl.exe 20->25 injected 28 chrome.exe 20->28         started        30 firefox.exe 20->30         started        process12 dnsIp13 42 www.veluno.website 203.161.41.106, 49697, 49698, 49699 VNPT-AS-VNVNPTCorpVN Malaysia 25->42 44 www.kotbc1s.store 103.224.182.242, 49691, 80 TRELLIAN-AS-APTrellianPtyLimitedAU Australia 25->44 46 7 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/e5736df87221b67a2e2a614374e1d6353043b95e08448ea9260e103ab18a5c8d
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.42 Win 32 Exe x86
Link:
https://app.malva.re/file/45595de94c06c3d7914383a1b0416ef0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e5736df87221b67a2e2a614374e1d6353043b95e08448ea9260e103ab18a5c8d/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2025-09-19 07:56:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4vzw36dseg3hulrkmfbxjyowguyehok6bbci5kjgbyidvmmklsgq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unc_loader_037
Create hunting rule
Similar samples:
5b50cbb52c090dd0bddb9d9cf1801147fef289051354e618344e27a1375c63f0
Formbook
8958957f28d6d109287facfd2d9e537c35000b5cdae8418f976a5bf9070e1256
Formbook
a8cec5e33f7270e2e3d463c42aea7ee63825c8a4abe083be79ff3c6f123da63e
Formbook
b0be564eb26f9cf2f58ea450d43194f3a4fb7dd2ca16375e3ecbfd636e5e7c13
Formbook
b140ed87f2ba5d4ea5781adb9abeb567c743c2edfcb330d2fcd93f7a72eb5220
Formbook
d248a0c9b30b0ae7ba91096d8106ca1b97b706a4d10e3921caeab6e9031bd565
Formbook
e33dfc29e3a3d1e436ae244e934158aa3d47f58da62238e54d5c625f274a692e
Formbook
e598b89b04fa29abdfdad5eca57c05401680597c5999160bc2963bcb5c2cf4f3
Formbook
e5c0d94c239bbf3aa57e92fd08403967b62ae2eaba19d1acc40400d4a1050cb0
Formbook
error
Formbook
+ 1'289 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/250919-jsmg1axxbt/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ce40e21a-3c83-470a-af7c-724ae57310f1
Unpacked files
SH256 hash:
e5736df87221b67a2e2a614374e1d6353043b95e08448ea9260e103ab18a5c8d
MD5 hash:
45595de94c06c3d7914383a1b0416ef0
SHA1 hash:
2b4520d7556495844b5f52d3f3a66d6f9657a38e
Link:
https://www.unpac.me/results/2951d27b-cc2b-4b5d-b0fd-6765121458e4/
SH256 hash:
1041b538ccbc7d66e59247ef7551cde9b6c282843541585e9190a8e2e3943b12
MD5 hash:
e870d1e8f3791ccc141f85f40fd2972b
SHA1 hash:
150919ee289cffa6feb40ab8261f620dd7e26aac
Link:
https://www.unpac.me/results/2951d27b-cc2b-4b5d-b0fd-6765121458e4/
SH256 hash:
a0ce8fa3dd622f01191e4f195f3b4df15138a8ba108fd2fbc8b77fcfe6458519
MD5 hash:
7f7c5c28874545a84fff607939af5f28
SHA1 hash:
3f34380da0fea0d3135203314872f88177ee49a6
Link:
https://www.unpac.me/results/2951d27b-cc2b-4b5d-b0fd-6765121458e4/
SH256 hash:
62c6e49babfabca56afb518cea51c3e644137d24fb1e9e24f601890bb8df1acc
MD5 hash:
46b1288ac13f77f2a5f4de72d5a51f59
SHA1 hash:
fbb8c648c1d53a5b089572cd64a83cacc200a4e2
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/2951d27b-cc2b-4b5d-b0fd-6765121458e4/
SH256 hash:
1406464058d8d05ab782f8772199ec61f7cebb62d351371a1aa7580bef0e8180
MD5 hash:
8b8a6c2e465f47d639ee8d0731c988a2
SHA1 hash:
f83dde6519f85935622ecd66b06ff19e3e8f7813
Link:
https://www.unpac.me/results/2951d27b-cc2b-4b5d-b0fd-6765121458e4/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e5736df87221/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/e5736df87221b67a2e2a614374e1d6353043b95e08448ea9260e103ab18a5c8d

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
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:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

tar 830a00982e0ac172e30db14e1c603fa39e1ff76ef64f61ee7b1eb2bcc8ecbfb5

Formbook

Executable exe e5736df87221b67a2e2a614374e1d6353043b95e08448ea9260e103ab18a5c8d

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/28279/
  
Dropped by
SHA256 830a00982e0ac172e30db14e1c603fa39e1ff76ef64f61ee7b1eb2bcc8ecbfb5
  
Dropped by
MD5 dbb85abacaf2569f06546fa9bf8dd90b

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