MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99bb3d1c9a2a4dad6465a81df1008b91f5836e51ce0463da76b31f9758dd9b62. 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 2 File information Comments
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SHA256 hash: 99bb3d1c9a2a4dad6465a81df1008b91f5836e51ce0463da76b31f9758dd9b62
SHA3-384 hash: 2399b63d741955cee390fcefe2c4685e4ad2e37eaf1705869ab2afd681d423341911ac135fa7698c08b2764d57818081
SHA1 hash: 6b67f39e534b6b6181c5670e1c729c9c014f138f
MD5 hash: ae2b941e7fbde95c2f65dca62dd868ce
humanhash: georgia-hotel-edward-delaware
File name:PART SHIPMENT- FEDEX - Cargo Arrival Notification Import Track No 270962529096 MR V fKUMAR.pdf.exe
Download: download sample
Signature Formbook
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File size:492'544 bytes
First seen:2022-04-06 05:50:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:Yc0MtxrBN6oONKs3arDkRHK3/LEr960mBPLh/C9j:YTOrioONKsqHkR+/LEvm1k9j
Threatray 14'642 similar samples on MalwareBazaar
TLSH T1E8A4121A3B17D912E0EF5B3681E4968613709B077203DB8FADDC166A27037EE1DD0AE4
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
257
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/261160/
Detection(s):
SecuriteInfo.com.Trojan.Siggen17.35009.19158.26703.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Searching for synchronization primitives
Reading critical registry keys
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed
Link:
https://www.filescan.io/uploads/624d2a4740ce5db9f4178e14/reports/4ccb1da0-f444-4877-bad1-e52bf5cda888/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/ecfb21ed-5808-4526-afbb-c262b2c72505
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/971316
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
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)
Uses ipconfig to lookup or modify the Windows network settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 603803 Sample: UMAR.pdf.exe Startdate: 06/04/2022 Architecture: WINDOWS Score: 100 33 www.youbakemelazy.com 2->33 35 www.righteouselixir.com 2->35 37 5 other IPs or domains 2->37 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 11 other signatures 2->51 11 UMAR.pdf.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\UMAR.pdf.exe.log, ASCII 11->31 dropped 67 Tries to detect virtualization through RDTSC time measurements 11->67 69 Injects a PE file into a foreign processes 11->69 15 UMAR.pdf.exe 11->15         started        18 UMAR.pdf.exe 11->18         started        signatures6 process7 signatures8 71 Modifies the context of a thread in another process (thread injection) 15->71 73 Maps a DLL or memory area into another process 15->73 75 Sample uses process hollowing technique 15->75 77 Queues an APC in another process (thread injection) 15->77 20 explorer.exe 15->20 injected process9 dnsIp10 39 lassscent.com 162.144.21.146, 49822, 80 UNIFIEDLAYER-AS-1US United States 20->39 41 www.tunaliescort.xyz 188.114.97.7, 49845, 80 CLOUDFLARENETUS European Union 20->41 43 9 other IPs or domains 20->43 53 System process connects to network (likely due to code injection or exploit) 20->53 55 Performs DNS queries to domains with low reputation 20->55 57 Uses ipconfig to lookup or modify the Windows network settings 20->57 24 ipconfig.exe 20->24         started        signatures11 process12 signatures13 59 Self deletion via cmd delete 24->59 61 Modifies the context of a thread in another process (thread injection) 24->61 63 Maps a DLL or memory area into another process 24->63 65 Tries to detect virtualization through RDTSC time measurements 24->65 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/99bb3d1c9a2a4dad6465a81df1008b91f5836e51ce0463da76b31f9758dd9b62/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-04-06 04:01:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tg5t2he2fjg22zdfvao7caelsh2yg3srzycghwtwwmpzowg5tnra._file
Verdict:
malicious
Label(s):
formbook
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Similar samples:
1db0c14308c42fd03886fdef546388f61558e612fce7f7043c28c822ac0c9b5e
Formbook
2522eb074537e2ea01f643fb1d5d4b7f5ab8d3f7cb6524f230ff5521c362cc3f
Formbook
3987ea55911d57e4f6e97332a95794f8d38465b521f5b27e0372a4598ed702b6
Formbook
acafe0e95f56a3a9105873aa70599b60c7e05b99f68006c763b21d590cc03906
Formbook
acf40f9d3eea74324291c55f5ab8d3678e0dcc085581bdd9cf66897f4324bc3c
Formbook
bc5116cdc710b153d2c32a9ecb5bccd7f3ed3c4cee398b9eba9f482dc5c77cd1
Formbook
dc36fc5d4c108d54e3a2a4a5309f87093f484e4bc928158c0a749417052f6f56
Formbook
e3004a946bcf2e7b396a75d00db10dee9dcd0881cc197d9294a171ad3d882349
Formbook
f469b5c967ff28b96444a48b6769ccde102417de9d59df1878bfe486ade890dd
Formbook
+ 14'632 additional samples on MalwareBazaar
Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:cnt4 loader rat
Link:
https://tria.ge/reports/220406-gj57mseban/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
3d10e391c75dbd7aea54fca25d65fc8e8567aacb87410b0a71a50352d722c53c
MD5 hash:
169fef09540f138687bd08584e6eada0
SHA1 hash:
4194e60b7e11dd690c3323b7519747cccc524caf
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/b5756ed1-946e-43e5-b5bd-0c6fccf1da9e/
Parent samples :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 hash:
a7e378f2b3c50b8391551ad816674626f0795e0fcb4db860c3535884f3682deb
MD5 hash:
b0b7f114c5ec59b2a5f95a5806bfc952
SHA1 hash:
b360b669fc7b3c0943977aceede9f72f7cb700e3
Link:
https://www.unpac.me/results/b5756ed1-946e-43e5-b5bd-0c6fccf1da9e/
SH256 hash:
22d56efbf52ec5d6a20a437c32deee3ea6a17bcde12e6efe2d5576384f1b3481
MD5 hash:
e03a6b7ebafbe5d80fe17f130ffcdb26
SHA1 hash:
7a4bbc5b9c87540bc39e4f990571731e23e0b3e4
Link:
https://www.unpac.me/results/b5756ed1-946e-43e5-b5bd-0c6fccf1da9e/
SH256 hash:
922f52d8697b3eba838736232aed897066bc904187a8d01996bfd667635da65c
MD5 hash:
ce03bb51c7afe6acc33bdc87df3133c2
SHA1 hash:
68a5bad5f667edd9e9bc6424323d9f7538696b12
Link:
https://www.unpac.me/results/b5756ed1-946e-43e5-b5bd-0c6fccf1da9e/
SH256 hash:
99bb3d1c9a2a4dad6465a81df1008b91f5836e51ce0463da76b31f9758dd9b62
MD5 hash:
ae2b941e7fbde95c2f65dca62dd868ce
SHA1 hash:
6b67f39e534b6b6181c5670e1c729c9c014f138f
Link:
https://www.unpac.me/results/b5756ed1-946e-43e5-b5bd-0c6fccf1da9e/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/99bb3d1c9a2a/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/99bb3d1c9a2a4dad6465a81df1008b91f5836e51ce0463da76b31f9758dd9b62

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
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Rule name:Skystars_Malware_Imphash
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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

arj 80185d2c2dfe72063459e5a69b3313d38effd650efa19da78ba3e11187bcec65

Formbook

Executable exe 99bb3d1c9a2a4dad6465a81df1008b91f5836e51ce0463da76b31f9758dd9b62

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 80185d2c2dfe72063459e5a69b3313d38effd650efa19da78ba3e11187bcec65
Cape
Cape
https://www.capesandbox.com/analysis/261160/

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