MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf28fead8ec14ec9e464574a4dd67fec82af54f203787632e55e7899293666df. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
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SHA256 hash: bf28fead8ec14ec9e464574a4dd67fec82af54f203787632e55e7899293666df
SHA3-384 hash: 815bb13f215dbacfb4ee46ee4da44872f872e071fa7bd71c52a61b9147589fde0d05b90acd76edb7d22738ceee29b143
SHA1 hash: d277550aacc1328807d3dcddaf9cdaa5c88296c0
MD5 hash: 4098ef762839010932f035a1a3737c42
humanhash: aspen-muppet-purple-yankee
File name:Hoja de orden de compra.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:386'048 bytes
First seen:2021-11-09 13:27:17 UTC
Last seen:2021-11-09 16:26:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:hI69iNLFtJMkMvr/iopMTgApLvxP+fLBq9gyFvUfd8zWv9aQJjw9hyzfgA3OuUAh:hl94htJTAraoppApLvxWfVq9gyNUl8zK
Threatray 9'055 similar samples on MalwareBazaar
TLSH T1C184121F7346D92BEA66513AEDE76D8003BC79829993D72B39DD230D696239708037CC
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
113
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/204503/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.18950.UNOFFICIAL
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Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/618a7765a00afa9663a1efbc/reports/ae814a38-a92f-4222-af65-e94d943ce666/overview
Result
Verdict:
UNKNOWN
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/f4c77a49-b8dd-436c-88a1-8007ab259cb2
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/886017
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
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behaviorgraph top1 signatures2 2 Behavior Graph ID: 518497 Sample: Hoja de orden de compra.pdf.exe Startdate: 09/11/2021 Architecture: WINDOWS Score: 100 50 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 15 other signatures 2->56 10 Hoja de orden de compra.pdf.exe 7 2->10         started        process3 file4 38 C:\Users\user\AppData\Roaming\yWRbOT.exe, PE32 10->38 dropped 40 C:\Users\user\AppData\Local\Temp\tmpECC.tmp, XML 10->40 dropped 42 C:\...\Hoja de orden de compra.pdf.exe.log, ASCII 10->42 dropped 60 Adds a directory exclusion to Windows Defender 10->60 14 RegSvcs.exe 10->14         started        17 RegSvcs.exe 10->17         started        19 powershell.exe 21 10->19         started        21 2 other processes 10->21 signatures5 process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 Queues an APC in another process (thread injection) 14->68 23 explorer.exe 14->23 injected 70 Tries to detect virtualization through RDTSC time measurements 17->70 27 conhost.exe 19->27         started        29 conhost.exe 21->29         started        process8 dnsIp9 44 ajansclubturkey.site 89.252.134.195, 49817, 80 NETINTERNETNetinternetBilisimTeknolojileriASTR Turkey 23->44 46 elianedefalco.com 66.235.200.147, 49793, 80 CLOUDFLARENETUS United States 23->46 48 3 other IPs or domains 23->48 58 System process connects to network (likely due to code injection or exploit) 23->58 31 mstsc.exe 23->31         started        signatures10 process11 signatures12 72 Modifies the context of a thread in another process (thread injection) 31->72 74 Maps a DLL or memory area into another process 31->74 76 Tries to detect virtualization through RDTSC time measurements 31->76 34 cmd.exe 1 31->34         started        process13 process14 36 conhost.exe 34->36         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bf28fead8ec14ec9e464574a4dd67fec82af54f203787632e55e7899293666df/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-11-09 13:16:27 UTC
AV detection:
18 of 25 (72.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x4up5lmoyfhmtzdek5fe3vt75sbk6vhsan4hmmxflz4jskjwm3pq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1e83eab755128ae8f4bcdade071b08cc6fae1ad62ff9fe29aae62b3e30ea28bb
Formbook
45e8fd9c2d454cbd2012f8cb1a3799fd70a470e5e82485c0df4f8b330e0c8ac5
Formbook
7249d67d49a862e577120d3125e33566c61241969b4f48d701de97a5fe0abc04
Formbook
7c0ab1d837684e8d37e75578f4821e25d7729cb9d3739f397cabbb9c95f2ddae
Formbook
9f59a9c7a38d8031c5b0829da6c4c10951b1de67adada4f567449d4b6ea8d83c
Formbook
b4585da149dee9da71100f73ac5088f6dcd2f0bad3a155a78615ab321fce3f71
Formbook
d16da4e6a63f26601dd3c961f31708db79be1aead7cf3834fafa47095b1a45a6
Formbook
f840ca48e6381b385534156b8245c39dee4d1c95e18569c91b5537ff2f20aa7d
Formbook
+ 9'045 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:dv9n rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/211109-qqnqlscdcq/
Behaviour
Creates scheduled task(s)
Gathers network information
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
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.elianedefalco.com/dv9n/
Unpacked files
SH256 hash:
91247d29e38c5d0736f69467ea73ab3b5c5af447002f4fec5aef94fa0910ea49
MD5 hash:
aff6bd42cdae47f707eb7f7d7963cbb7
SHA1 hash:
9a760d8c0bd93904227152211c9ce9418cd79858
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/8bd4855a-20cc-404e-8111-867a15ab4be8/
Parent samples :
45e8fd9c2d454cbd2012f8cb1a3799fd70a470e5e82485c0df4f8b330e0c8ac5
1e83eab755128ae8f4bcdade071b08cc6fae1ad62ff9fe29aae62b3e30ea28bb
567ef74c599b649cd4fdb508e165d60f7795f91a997a99899d9d56e010d6da6b
b4585da149dee9da71100f73ac5088f6dcd2f0bad3a155a78615ab321fce3f71
eaf11cea9f18183f7136f75ac7d10673a332bf8ea838bdcbe7aad7de74e7dfdd
c01c7ea8ec4fc73883cbd9c1cb9963f68ceebac4d5f0051d55e7064dd1d1ee5c
78e7401ff95f4267f226bd32e633f6000dcd202d3611717508b1d7752ea21c55
7f03b4050a54b95eba904a8e8882b55389bd20f591e9828b40cd9da3b93a1e36
8d2178f66a2f38749fe7a14664a5d360a42394720903651aea85a5d96cfdbc41
632ef368af47bedba7af9cf7ab05e6a99aa914c6290123b1c1a74cc432b6e312
bf28fead8ec14ec9e464574a4dd67fec82af54f203787632e55e7899293666df
9d37fb95eefc5396c3aee5e5c4525b373821cd151f7fc5b2d3805f0fb0056a4a
e0ca69bd0c1cde0b3a3e5bbae618c3edc82314f323ff4f062edb2d429d394548
85c25c523bf8a24c2d4eda60e343729175635dfd590cb3e42732ecc27e55b0d3
d3d8ab2d49b0e893933192b1dbc35e4d58e67efc8e09621d28acccc75a48b29b
5934b53c06d3c943f4cef7e383eabbea1587591a41a92280c0bf55e169927f13
23cc653ccf677673adb0aef167fdc3e661a401eb9774bad371b7aac17e71e072
697a0ee6a759f449af11f5d49db2b5abd2d3e18d9881dafaa8c6f7459c8788dc
SH256 hash:
91655863c7906a8d20c7c782144f553c027843a72f2fdab2b1ccc80808083af0
MD5 hash:
b5044dd0e9c91b1a9185d491da7d07f2
SHA1 hash:
a9ff8129771d85f77b6a145f750c70e53f51125e
Link:
https://www.unpac.me/results/8bd4855a-20cc-404e-8111-867a15ab4be8/
SH256 hash:
26a4465b7a882971b7de903b0d1e19436deebed3035699e6b76a9cee05be3b69
MD5 hash:
474424dac6e1b38feb4b4706eb96d86b
SHA1 hash:
5a90cea0f1dc68cdd50a15444cb7ee6f774763d1
Link:
https://www.unpac.me/results/8bd4855a-20cc-404e-8111-867a15ab4be8/
SH256 hash:
bf28fead8ec14ec9e464574a4dd67fec82af54f203787632e55e7899293666df
MD5 hash:
4098ef762839010932f035a1a3737c42
SHA1 hash:
d277550aacc1328807d3dcddaf9cdaa5c88296c0
Link:
https://www.unpac.me/results/8bd4855a-20cc-404e-8111-867a15ab4be8/
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/bf28fead8ec14ec9e464574a4dd67fec82af54f203787632e55e7899293666df

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: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 bf28fead8ec14ec9e464574a4dd67fec82af54f203787632e55e7899293666df

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/204503/

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