MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 84d592767b553d06efe654049e16c7c583c0fa505f05b623dc508902d62b5a7d. 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: 17


Intelligence 17 IOCs YARA 2 File information Comments
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SHA256 hash: 84d592767b553d06efe654049e16c7c583c0fa505f05b623dc508902d62b5a7d
SHA3-384 hash: 12e1ed643b33c616abd3dc33283b55fc8c5049320b0bb018009f8f25614c6ff70f0fee7cf7bfe951d1138a9fd2907a39
SHA1 hash: f31bc738bda34893f6a2f3801e224694cc0cf20e
MD5 hash: ffc4a0aa23f349c9d8e7bffc212807bb
humanhash: nuts-stairway-chicken-texas
File name:Fattura_855.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:219'467 bytes
First seen:2022-05-09 08:26:23 UTC
Last seen:2022-05-16 09:17:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (720 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 3072:l1NjcVVnLpPunbm18eXAENJmDRF3o/9E0UU65FHOYE2gPtTq6viN8BzgvSAdVvdK:HNeZm+RJSV9s93U1hOzOX4zgvtuh
Threatray 15'369 similar samples on MalwareBazaar
TLSH T1AF241261BBA1C8B7E9A79B325E768737B75B340408E6430F2350A78D3E62241F98F305
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
249
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Fattura_855.pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-05-09 08:35:49 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/44e6d673-5794-42fa-86cd-509a4585f897

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.2.6896.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/16774/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6278d069a40dfc4df2107927/reports/9010b73c-def4-4c09-ad68-fe0e2ab1a38d/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e2e50999-6c41-403b-9f56-472f3e29c56f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/990045
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 622543 Sample: Fattura_855.pdf.exe Startdate: 09/05/2022 Architecture: WINDOWS Score: 100 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for URL or domain 2->47 49 7 other signatures 2->49 11 Fattura_855.pdf.exe 18 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\...\xepnatcvt.exe, PE32 11->31 dropped 14 xepnatcvt.exe 11->14         started        process5 signatures6 59 Multi AV Scanner detection for dropped file 14->59 61 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->61 63 Tries to detect virtualization through RDTSC time measurements 14->63 65 Injects a PE file into a foreign processes 14->65 17 xepnatcvt.exe 14->17         started        process7 signatures8 35 Modifies the context of a thread in another process (thread injection) 17->35 37 Maps a DLL or memory area into another process 17->37 39 Sample uses process hollowing technique 17->39 41 Queues an APC in another process (thread injection) 17->41 20 explorer.exe 17->20 injected process9 dnsIp10 33 www.enspireideas.com 116.92.197.3, 49752, 80 HKBNES-AS-APHKBNEnterpriseSolutionsHKLimitedHK Hong Kong 20->33 51 System process connects to network (likely due to code injection or exploit) 20->51 24 explorer.exe 20->24         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 24->53 55 Maps a DLL or memory area into another process 24->55 57 Tries to detect virtualization through RDTSC time measurements 24->57 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/84d592767b553d06efe654049e16c7c583c0fa505f05b623dc508902d62b5a7d/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2022-05-06 09:04:11 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
24 of 26 (92.31%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qtkze5t3ku6qn37gkqcj4fwhywb4b6sql4c3mi64kceqfvrllj6q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
308d882a5267dc2b1e74498c052ad6f0ba7e29544f8872600586b9d2dfe798f9
Formbook
46cd865e4436d5c43c1d5ff76d6dc1c7468760df1b7d4f84060b7d429e0ab74d
Formbook
4ad6f22622ee8d0479488a776ff027e1ee66acfead8f6de0a39c6db6abba0ab0
Formbook
573340e7db5b08254ff95f02f3f2ecc9b24db1f8cb35d75dcffe71d6b35d74fe
Formbook
9ff4f71e3878c4aae12440d4f8e6a8fa2af51c60c5375b49f4e0a8d8ffc8c2b2
Formbook
c6ccab15f09cd96dc361af96d7c1b3469d83aaede794309536131081ea6ab245
Formbook
d02d076842cc94fa6612b13ff0d2f77e1ff9150d22607cfe3962da4234cf4ed5
Formbook
eb77b393777ae1d97050ecc4e86bb7e3428016471b112a7ca0f2c3376427b3f5
Formbook
+ 15'359 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:m0r9 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220509-kcfj7affcn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
f4ad7b96f298c4f7448a407b0127b0e785661423e93c5cc90c44d76f4545c767
MD5 hash:
6a9318eb9d199d9290187ed59277b370
SHA1 hash:
89baef2276dac882c240b8a1f9c3f5402f16051d
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/0ad8f420-d7de-4230-b2cf-ccd03c9d0a0e/
Parent samples :
03d4b246e3b88a839063be2dc08c4e903ed42db0f65457ed6c36915e67d0c251
84d592767b553d06efe654049e16c7c583c0fa505f05b623dc508902d62b5a7d
SH256 hash:
c20e8fc8dd973ebf3ce96a3373a2d7c9155eefe7ae059780b4d3696a0bf5f5d7
MD5 hash:
8468cf49717c2d7ee43d734939352791
SHA1 hash:
6ea162fd7e5fa8c97d8d1c72756677dc90a60997
Link:
https://www.unpac.me/results/0ad8f420-d7de-4230-b2cf-ccd03c9d0a0e/
SH256 hash:
84d592767b553d06efe654049e16c7c583c0fa505f05b623dc508902d62b5a7d
MD5 hash:
ffc4a0aa23f349c9d8e7bffc212807bb
SHA1 hash:
f31bc738bda34893f6a2f3801e224694cc0cf20e
Link:
https://www.unpac.me/results/0ad8f420-d7de-4230-b2cf-ccd03c9d0a0e/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/84d592767b55/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/84d592767b553d06efe654049e16c7c583c0fa505f05b623dc508902d62b5a7d

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:malware_Formbook_strings
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Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Malspam

Formbook

Executable exe 84d592767b553d06efe654049e16c7c583c0fa505f05b623dc508902d62b5a7d

(this sample)

  
Delivery method
Distributed via e-mail attachment

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