MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 971420c75858816fd7d63e31fd1caa66d69bc64a4d7b9c7b3d14cae787909b67. 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: 971420c75858816fd7d63e31fd1caa66d69bc64a4d7b9c7b3d14cae787909b67
SHA3-384 hash: 70d99384fd54665de25a96b6f616368511e7d11b840b866e0d5f503bba457901f6f849f3d13efa6c1fe2899aabda31c8
SHA1 hash: 8fb8fa8ad7e9c6d5d9794712e9a97256da48e704
MD5 hash: 803b6ba9a53682db73d58069468ea0de
humanhash: mike-cat-bacon-violet
File name:DHL OVERDUE ACCOUNT LETTER.PDF.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:687'616 bytes
First seen:2025-11-18 06:48:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ef471c0edf1877cd5a881a6a8bf647b9 (83 x Formbook, 33 x Loki, 31 x Loda)
ssdeep 12288:SOv5jKhsfoPA+yeVKUCUxP4C902bdRtJJPiH01lOAGCiA7hEWUwOlKOr1G5W:Sq5TfcdHj4fmbR7OjCiuXUwx7o
Threatray 2'123 similar samples on MalwareBazaar
TLSH T1A8E423C0A8D4CCA1FB643331D1BFCEA54A957C368D862B7D07D6F259A8723835846B2D
TrID 33.9% (.EXE) UPX compressed Win32 Executable (27066/9/6)
33.3% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
13.1% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.6% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter abuse_ch
Tags:DHL exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
113
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DHL OVERDUE ACCOUNT LETTER.PDF.exe
Verdict:
No threats detected
Analysis date:
2025-11-18 06:49:11 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7e875557-424b-4d17-b905-913f39ba3ede

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/38532/
Detection(s):
SecuriteInfo.com.W32.Trojan.VORE-2106.1542.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=691c16b9434cd67b17c2b900
Tags:
spawn
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
autoit compiled-script masquerade microsoft_visual_cc packed packed packed upx
Link:
https://www.filescan.io/uploads/691c16f20eed41f604a9060d/reports/efe4b51c-9c37-42c5-9115-92d73bc8f2aa/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/971420c75858816fd7d63e31fd1caa66d69bc64a4d7b9c7b3d14cae787909b67
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-17T21:19:00Z UTC
Last seen:
2025-11-20T05:22:00Z UTC
Hits:
~1000
Detections:
Trojan.Win32.Inject.sb VHO:Trojan-Spy.Win32.Noon.bnuw Trojan-PSW.Win32.Stealer.sb Trojan-Dropper.Win32.Dorifel.sbd Trojan.Win32.Zenpak.sb Trojan.Win32.Strab.sb Trojan.Win32.Auzenpak.sb Trojan-Spy.Win32.Noon.bnut Trojan-Spy.Noon.HTTP.ServerRequest Trojan.Win32.Agent.sb PDM:Trojan.Win32.Generic Trojan-Spy.Win32.Noon.sb
Link:
https://opentip.kaspersky.com/971420c75858816fd7d63e31fd1caa66d69bc64a4d7b9c7b3d14cae787909b67/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/69e07d72-f02c-46d0-974c-f358a3bdb11d
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1815793
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
Initial sample is a PE file and has a suspicious name
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)
Unusual module load detection (module proxying)
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1815793 Sample: DHL OVERDUE ACCOUNT LETTER.... Startdate: 18/11/2025 Architecture: WINDOWS Score: 100 31 www.spankwirepg.xyz 2->31 33 www.scoreodds.xyz 2->33 35 17 other IPs or domains 2->35 43 Suricata IDS alerts for network traffic 2->43 45 Antivirus detection for URL or domain 2->45 47 Antivirus / Scanner detection for submitted sample 2->47 51 8 other signatures 2->51 11 DHL OVERDUE ACCOUNT LETTER.PDF.exe 4 2->11         started        signatures3 49 Performs DNS queries to domains with low reputation 33->49 process4 signatures5 61 Binary is likely a compiled AutoIt script file 11->61 63 Writes to foreign memory regions 11->63 65 Maps a DLL or memory area into another process 11->65 14 svchost.exe 11->14         started        process6 signatures7 67 Maps a DLL or memory area into another process 14->67 69 Unusual module load detection (module proxying) 14->69 17 IKXP8PIdAfh6.exe 14->17 injected process8 process9 19 relog.exe 13 17->19         started        signatures10 53 Tries to steal Mail credentials (via file / registry access) 19->53 55 Tries to harvest and steal browser information (history, passwords, etc) 19->55 57 Modifies the context of a thread in another process (thread injection) 19->57 59 4 other signatures 19->59 22 MrxQBgEOzb.exe 19->22 injected 25 chrome.exe 19->25         started        27 firefox.exe 19->27         started        process11 dnsIp12 37 cataratascred.com.br 162.241.2.152, 49720, 49721, 49722 OIS1US United States 22->37 39 trojwymiar.pl 79.96.110.5, 49732, 49733, 49734 HOMEPL-ASPL Poland 22->39 41 10 other IPs or domains 22->41 29 WerFault.exe 4 25->29         started        process13
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/971420c75858816fd7d63e31fd1caa66d69bc64a4d7b9c7b3d14cae787909b67
Verdict:
Malware
YARA:
5 match(es)
Tags:
AutoIt Decompiled Executable PE (Portable Executable) PE File Layout Suspect Win 32 Exe x86
Link:
https://app.malva.re/file/803b6ba9a53682db73d58069468ea0de
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/971420c75858816fd7d63e31fd1caa66d69bc64a4d7b9c7b3d14cae787909b67/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/971420c75858816fd7d63e31fd1caa66d69bc64a4d7b9c7b3d14cae787909b67
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-11-18 00:59:38 UTC
File Type:
PE (Exe)
Extracted files:
52
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=s4kcbr2ylcaw7v6whyy72hfkm3ljxrskjv5zy6z5ctfopb4qtntq._file
Verdict:
malicious
Label(s):
autoit
Create hunting rule
formbook
Create hunting rule
Similar samples:
14a371e6549ffd778165044baeafb53330d9f0756dd17369d5abc3e56f3951fa
Formbook
2968dbd64af4b7668158b729f043c71b653bec1d5e4c965359bbc662a4cd3fda
Formbook
385a6144e684a9508f25fbec58476588f915f4194fd5233612128aad5b849ef7
Formbook
53592d3e312254ed45b551c06bb9eb984056011f3f734cec678978b209e3bbdd
Formbook
8967837eab9afe73b438a53a780e5258567de638ccb4bf8685f6a3551f67d60f
Formbook
97cf92effe4fc246ea0e97a03b67be998b5b3d255fc5e9842c8165f9dc69bf86
Formbook
9adeec7138d5d6854c3632ed0560edf5566d75347ffb0b13aa441ba89aed930a
Formbook
a261dd696014b1ee8348bef04980efda5d762a6563a08c0256d5f09fec1a8cd7
Formbook
b75db5d4979ec63cf001640529fd3be14433a40d03e17e751754909617ccc4af
Formbook
+ 2'113 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan upx
Link:
https://tria.ge/reports/251118-hkzlxsvpbn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
AutoIT Executable
Suspicious use of SetThreadContext
UPX packed file
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/aa58a7be-0e8c-4363-8d59-ef74bdcc4749
Unpacked files
SH256 hash:
971420c75858816fd7d63e31fd1caa66d69bc64a4d7b9c7b3d14cae787909b67
MD5 hash:
803b6ba9a53682db73d58069468ea0de
SHA1 hash:
8fb8fa8ad7e9c6d5d9794712e9a97256da48e704
Link:
https://www.unpac.me/results/8f3c9a05-1564-462b-9a66-3e2f7fdc09bd/
SH256 hash:
858e30cbc6c15fb0e6ae7a1b6b6b455db86d6c5d5a37b9b744acb9d648c1717b
MD5 hash:
be4e9b90acca9509db87c439250bd79e
SHA1 hash:
f62c79e4c5b5302216fb5562af2c7c2729d678f4
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/8f3c9a05-1564-462b-9a66-3e2f7fdc09bd/
SH256 hash:
6d22e71b6d3c76857a7fc7941b1facff35b76295e2f9678b2df24ffda738abbe
MD5 hash:
280bada417847aeb9385a0e7e198d5a0
SHA1 hash:
689a8845e1f64394e745c2b52e3e0e088c524ce1
Link:
https://www.unpac.me/results/8f3c9a05-1564-462b-9a66-3e2f7fdc09bd/
SH256 hash:
25c0d277354d1bf9c959335983ed1aa917d66112677b875187e75174f02b49bf
MD5 hash:
5892f5fd62fad19a8540d42e0ce655dd
SHA1 hash:
f809f3bc7285dc12d4079a0c723912d4756ba2b5
Link:
https://www.unpac.me/results/8f3c9a05-1564-462b-9a66-3e2f7fdc09bd/
SH256 hash:
641cc1c21aaa03a2ca94f57b514c98a5ebd6374fdd1646d87273011942766744
MD5 hash:
6d71fb8b7569cc7374cd014da7c28690
SHA1 hash:
08ee46bc4191f8855ed7ac215414151e77dcfad3
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/8f3c9a05-1564-462b-9a66-3e2f7fdc09bd/
Parent samples :
e5a80ce04f2119cef25fc5aafaa36c0ec6319724dcc4676c90aa04eddeeafb73
cf7b3427dd7cb3cd41edafb409f7ad0649735e69311db73ec1546c7b25b37e58
6e4867e381ff15f43c6ee783765cfda338d224b5b2fb8388ade6f9b54819bae7
313386d99a89a5f9ab94206e9b951a2f8ed5d968a6b5d821c927ee5f3f83585f
971420c75858816fd7d63e31fd1caa66d69bc64a4d7b9c7b3d14cae787909b67
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/971420c75858/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/971420c75858816fd7d63e31fd1caa66d69bc64a4d7b9c7b3d14cae787909b67

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:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:upx_largefile
Create hunting rule
Author:k3nr9

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/38532/

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