MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 af9e19b850ac8564ed2282c50b626f7e2baeb77dcd86a5936d09eb3248cee161. 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 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: af9e19b850ac8564ed2282c50b626f7e2baeb77dcd86a5936d09eb3248cee161
SHA3-384 hash: 2a916c8bd421d6cb7dba757a58bdcb85660917b3e25e91140497b8d69a935bd7a7e90c2bdae9239f547f99fde42d5ca3
SHA1 hash: b40e11c6c45c7c26e771d46ee0c78b2784e3887d
MD5 hash: 6c566769b4db850f4c1558cf1ae5ccff
humanhash: mississippi-virginia-delta-robin
File name:RFQ-1579.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:750'592 bytes
First seen:2025-09-30 10:03:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 21371b611d91188d602926b15db6bd48 (61 x Formbook, 23 x AgentTesla, 20 x RemcosRAT)
ssdeep 12288:rz7hU5I5yuNHIgzSFKxWltRohBfSTso93UZtpe940YWjhOePqAizee3nsKx+:rf+iN57Gtene3aXe9jYWjtPqls6+
TLSH T1EBF422C45EC56D65C580A2308032CD11467939719EAA172BC32AEB6BBCB13D3EDB375D
TrID 39.1% (.EXE) UPX compressed Win32 Executable (27066/9/6)
38.3% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
7.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.9% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter cocaman
Tags:exe FormBook RFQ

Intelligence

File Origin
# of uploads :
1
# of downloads :
114
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
af9e19b850ac8564ed2282c50b626f7e2baeb77dcd86a5936d09eb3248cee161.exe
Verdict:
No threats detected
Analysis date:
2025-09-30 10:57:22 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f0cf555c-f416-4aa5-8a76-fc4e25a8f072

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/29556/
Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68dbab1e40b7da0b4eb8d2d1
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:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit compiled-script evasive fingerprint lolbin microsoft_visual_cc netsh obfuscated packed packed packed packer_detected phishing reg threat upx
Link:
https://www.filescan.io/uploads/68dbab3274e5a289899a01f5/reports/d2445376-7564-4c0e-9672-40b09094cc88/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/af9e19b850ac8564ed2282c50b626f7e2baeb77dcd86a5936d09eb3248cee161
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-29T21:42:00Z UTC
Last seen:
2025-10-02T06:42:00Z UTC
Hits:
~1000
Detections:
Trojan.Win32.Strab.sb Trojan.Win32.Inject.sb HEUR:Trojan.Script.AUO.gen Trojan-Spy.Noon.HTTP.ServerRequest Trojan.Win32.Zenpak.sb PDM:Trojan.Win32.Generic Trojan-Spy.Win32.Noon.sb Trojan-PSW.Win32.Stealer.sb
Link:
https://opentip.kaspersky.com/af9e19b850ac8564ed2282c50b626f7e2baeb77dcd86a5936d09eb3248cee161/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a5aa8010-b7af-4143-b696-f4932260d731
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1786535
Signature
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)
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)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1786535 Sample: RFQ-1579.exe Startdate: 30/09/2025 Architecture: WINDOWS Score: 100 31 www.zto168.xyz 2->31 33 www.uravo.xyz 2->33 35 9 other IPs or domains 2->35 43 Suricata IDS alerts for network traffic 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 Yara detected FormBook 2->47 51 2 other signatures 2->51 11 RFQ-1579.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 67 Switches to a custom stack to bypass stack traces 11->67 14 svchost.exe 11->14         started        process6 signatures7 69 Maps a DLL or memory area into another process 14->69 17 ss4tTbEMY.exe 14->17 injected process8 process9 19 gpupdate.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 3 other signatures 19->59 22 97nBLNKfsNXc.exe 19->22 injected 25 chrome.exe 19->25         started        27 firefox.exe 19->27         started        process11 dnsIp12 37 www.zyouqj.mobi 160.124.19.17, 49747, 49748, 49749 POWERLINE-AS-APPOWERLINEDATACENTERHK South Africa 22->37 39 www.yqyqyiqian.top 154.23.185.239, 49727, 49728, 49729 COGENT-174US United States 22->39 41 5 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/af9e19b850ac8564ed2282c50b626f7e2baeb77dcd86a5936d09eb3248cee161
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/af9e19b850ac8564ed2282c50b626f7e2baeb77dcd86a5936d09eb3248cee161/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/af9e19b850ac8564ed2282c50b626f7e2baeb77dcd86a5936d09eb3248cee161
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-09-30 01:21:05 UTC
File Type:
PE (Exe)
Extracted files:
52
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=v6pbtocqvscwj3jcqlcqwytppyv25n35zwdkle3nbhvtesgo4fqq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan upx
Link:
https://tria.ge/reports/250930-l35sfadr7z/
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/78f78ec0-32a0-43bb-8c63-d59ff0975c82
Unpacked files
SH256 hash:
af9e19b850ac8564ed2282c50b626f7e2baeb77dcd86a5936d09eb3248cee161
MD5 hash:
6c566769b4db850f4c1558cf1ae5ccff
SHA1 hash:
b40e11c6c45c7c26e771d46ee0c78b2784e3887d
Link:
https://www.unpac.me/results/1223931a-8830-4ba0-a84b-bdac382f1ea3/
SH256 hash:
7b51676ea4b4d83cb6ef493af2365150a27b300a245af9092dc550500d7b830b
MD5 hash:
be957f2d9b1117f2c5041f39ac0485fd
SHA1 hash:
e626e294ce393c98c1713fec8dba6396b2d8cf63
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/1223931a-8830-4ba0-a84b-bdac382f1ea3/
SH256 hash:
2a76c321dabdd8f24180f4583ae9e7a1b7b476736f6660fcd594df40ef64c01b
MD5 hash:
566110b8c3f2640fdbecf841b38c2ac3
SHA1 hash:
e43efd751f30d619bcc1c0151a68534652f247e5
Link:
https://www.unpac.me/results/1223931a-8830-4ba0-a84b-bdac382f1ea3/
SH256 hash:
319409da481ad72785b39892669923c220a821a9c3b59fb8180b510c4a539e27
MD5 hash:
5076629d8a61df2ae03b7c09f6217802
SHA1 hash:
5a94aa61474e1ddd8e08616cb63aa9cf5893d8a2
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/1223931a-8830-4ba0-a84b-bdac382f1ea3/
Parent samples :
af9e19b850ac8564ed2282c50b626f7e2baeb77dcd86a5936d09eb3248cee161
703af985b3787f140971cccc1cfe86ed8af40a9ba9e05ab0e7e2d67ac97a79b7
385a6144e684a9508f25fbec58476588f915f4194fd5233612128aad5b849ef7
40eb95d0ad64a1451d51d018778573335e94e4a28fc044c629795ef7f6caede8
f9527b23b7b4a289ab4785b85cfb8aaf599ed49fda85794e7363f8150e25e8cb
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/af9e19b850ac/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/af9e19b850ac8564ed2282c50b626f7e2baeb77dcd86a5936d09eb3248cee161

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_detect_tls_callbacks
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:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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: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.

Malspam

Formbook

zip 6421948f83bcc1f517adc2556847074a25f8ea04a12be5ede19380f16fc18f50

Formbook

Executable exe af9e19b850ac8564ed2282c50b626f7e2baeb77dcd86a5936d09eb3248cee161

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 6421948f83bcc1f517adc2556847074a25f8ea04a12be5ede19380f16fc18f50
Cape
Cape
https://www.capesandbox.com/analysis/29556/
  
Dropped by
MD5 13e38af57e2c456ef3bc16b44afdfd46

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