MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 83ae305c6dfc65ca4d81e81574338c7e75ca7324e948c14e3ab065a2b3abaaad. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 83ae305c6dfc65ca4d81e81574338c7e75ca7324e948c14e3ab065a2b3abaaad
SHA3-384 hash: e3fcf7d1e77d9d2ef3925a660c47c0d72fee38dcfd42dcc73044d0486329e23e344dde9154b2fb50ef51926bcd634b54
SHA1 hash: 40fc3d90a9718813682a22f6252487d5f86380d4
MD5 hash: dba06e22c9ea857f932cd1403c26b3f4
humanhash: magazine-mars-single-gee
File name:RFQ9390134120000.PDF.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'085'440 bytes
First seen:2021-12-08 01:17:08 UTC
Last seen:2021-12-08 09:05:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 24576:3DDDlDDDDDDDDDDDDDZ9U0nxs3Fm5aRtSkUwR8ObizDngClr:3DDDlDDDDDDDDDDDDDfUS+3FeaRkkUw8
Threatray 10'097 similar samples on MalwareBazaar
TLSH T11635227C3A9397CDD98A827137A2907803B67D77A117C2AEE55A320F5937742B533283
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
190
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ9390134120000.PDF.exe
Verdict:
Malicious activity
Analysis date:
2021-12-08 01:20:31 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/ca3373b1-6857-4206-9a5a-55108e65d3f0

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/212316/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching a process
Reading critical registry keys
Сreating synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit obfuscated packed
Link:
https://www.filescan.io/uploads/61b007cdfa72c81b5b10dc46/reports/8034d2e0-bced-4656-8a64-1b8321cbe80e/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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/72545bbd-b27f-4786-9691-75a38ad12e6f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/903562
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Suspicious Double Extension
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
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: 536040 Sample: RFQ9390134120000.PDF.exe Startdate: 08/12/2021 Architecture: WINDOWS Score: 100 31 www.caringhearts.one 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 11 other signatures 2->45 11 RFQ9390134120000.PDF.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\...\RFQ9390134120000.PDF.exe.log, ASCII 11->29 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 15 RFQ9390134120000.PDF.exe 11->15         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 Queues an APC in another process (thread injection) 15->65 18 explorer.exe 15->18 injected process9 dnsIp10 33 tvnewscloset.com 148.163.122.28, 49764, 80 IOFLOODUS United States 18->33 35 www.krakennewhour.com 104.21.91.158, 49796, 80 CLOUDFLARENETUS United States 18->35 37 www.tvnewscloset.com 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 help.exe 18->22         started        signatures11 process12 signatures13 49 Self deletion via cmd delete 22->49 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/83ae305c6dfc65ca4d81e81574338c7e75ca7324e948c14e3ab065a2b3abaaad/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-08 01:18:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
25
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qoxdaxdn7rs4utmb5akxim4mpz24u4ze5femctr2wbs2fm5lvkwq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1bb913d6f594107a8c8d4d64f9a3de85c602813d9ad93189b9949fbc8a93aa32
Formbook
26b24cfe3b0bb84b26fc83ce689b74728ac61f32391772dcc76eab04cc7042b5
Formbook
48c9cebf9a4f71daebd9ccbb9431669d4e9c1f9f1ad181bccc0b0cea59b489db
Formbook
9404982e0cf941d6103e40246a6689d91be00c03c8d9072e42ebf56bd9080492
Formbook
c6043c3c87526712c251385dacc61e443647d1dcca1e86ce411e69cb711c4640
Formbook
d6a8c5f4120e3be2e6d676d808dbdadc074f811398ac5b03878baba7275137d4
Formbook
d95ea981292e062e17b671022beaf00ee5c5ad6fbebf092096de7f1ecf27c4c1
Formbook
f13197aff6f530d9883aa1787cd57f4580c4c92bcaa5100f2641924c3e6867a5
Formbook
+ 10'087 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:gr1c rat spyware stealer trojan
Link:
https://tria.ge/reports/211208-bny18shae9/
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
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.illusiontrick.com/gr1c/
Unpacked files
SH256 hash:
69c4bb6e6d3a50682f5bed090fc0d85e2f316760dcb33616a5b4da0a085bc4bf
MD5 hash:
e0f4e3bb8f985bf035f08b4c716f8a42
SHA1 hash:
d90ca36998b24d6af4727bf69ff4062446f8c53f
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/147e7938-94fa-4e3e-9ea4-90aa6a794e41/
Parent samples :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 hash:
33677f6af9ef52bdbc6ea4f2bf612ce17f90ca8615656d5aa8fdc8b3078523fa
MD5 hash:
10b453d601313b15edb97028ee1bfc85
SHA1 hash:
2b11ec31007805d32aec10b0814c5c45b4aa98ae
Link:
https://www.unpac.me/results/147e7938-94fa-4e3e-9ea4-90aa6a794e41/
SH256 hash:
80855df0d7e7629d1f16cfecb7270f7db3ae6c1e32973803330862e531e69a53
MD5 hash:
2ee37952c40f8681eb58af6196d117da
SHA1 hash:
10f1c59089e1485b1440a47fbde89172dd000a29
Link:
https://www.unpac.me/results/147e7938-94fa-4e3e-9ea4-90aa6a794e41/
SH256 hash:
83ae305c6dfc65ca4d81e81574338c7e75ca7324e948c14e3ab065a2b3abaaad
MD5 hash:
dba06e22c9ea857f932cd1403c26b3f4
SHA1 hash:
40fc3d90a9718813682a22f6252487d5f86380d4
Link:
https://www.unpac.me/results/147e7938-94fa-4e3e-9ea4-90aa6a794e41/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/83ae305c6dfc/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/83ae305c6dfc65ca4d81e81574338c7e75ca7324e948c14e3ab065a2b3abaaad

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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
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

Executable exe 83ae305c6dfc65ca4d81e81574338c7e75ca7324e948c14e3ab065a2b3abaaad

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/212316/

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