MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 259d4ade0f00567d2c5454fb715b8847fb568a4d1c6977cf1535af0373b4696d. 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 2 File information Comments
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SHA256 hash: 259d4ade0f00567d2c5454fb715b8847fb568a4d1c6977cf1535af0373b4696d
SHA3-384 hash: 33e48fe22ec8958b85c105a6c1b55829ba4004296e1ae40101d432c5286c8814a030c99591fc369413e758b05964d322
SHA1 hash: 60ceeafa7a8102141973a16ea150ddf16b8d92fb
MD5 hash: fe67cade20376441b44bec3f51c289a3
humanhash: arizona-delta-oregon-freddie
File name:Purchase Order.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:894'976 bytes
First seen:2021-05-26 21:47:31 UTC
Last seen:2021-05-26 22:44:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:+zJ/TUcyOiDf9BvHfz3TMDwz3ZatZ6O9:6J/TIJfbvHbCwz3ZatZ
Threatray 5'576 similar samples on MalwareBazaar
TLSH 8A15AD2C156EF222C1ACC2BD1AC4402BF990D7377131BE69ECD70B995B19E817D9227E
Reporter GovCERT_CH
Tags:FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
96
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchase Order.pdf.exe
Verdict:
Suspicious activity
Analysis date:
2021-05-26 21:55:12 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c662f3a2-4eab-4979-a3bd-a2be3b0c5cac

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/162593/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.12124.14403.29144.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/792950
Signature
.NET source code contains very large strings
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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: 425346 Sample: Purchase Order.pdf.exe Startdate: 26/05/2021 Architecture: WINDOWS Score: 100 32 www.thebeadtrap.com 2->32 34 thebeadtrap.com 2->34 36 www.thegipsongazette.com 2->36 48 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 11 other signatures 2->54 11 Purchase Order.pdf.exe 3 2->11         started        signatures3 process4 file5 30 C:\Users\user\...\Purchase Order.pdf.exe.log, ASCII 11->30 dropped 66 Injects a PE file into a foreign processes 11->66 15 Purchase Order.pdf.exe 11->15         started        signatures6 process7 signatures8 68 Modifies the context of a thread in another process (thread injection) 15->68 70 Maps a DLL or memory area into another process 15->70 72 Sample uses process hollowing technique 15->72 74 Queues an APC in another process (thread injection) 15->74 18 explorer.exe 15->18 injected process9 dnsIp10 38 topiaegg.net 51.159.90.32, 80 OnlineSASFR France 18->38 40 www.junkyardfitness4wellness.com 216.55.149.9, 49743, 80 INFB2-ASUS United States 18->40 42 16 other IPs or domains 18->42 56 System process connects to network (likely due to code injection or exploit) 18->56 22 explorer.exe 12 18->22         started        signatures11 process12 dnsIp13 44 www.topiaegg.net 22->44 46 topiaegg.net 22->46 58 System process connects to network (likely due to code injection or exploit) 22->58 60 Modifies the context of a thread in another process (thread injection) 22->60 62 Maps a DLL or memory area into another process 22->62 64 Tries to detect virtualization through RDTSC time measurements 22->64 26 cmd.exe 1 22->26         started        signatures14 process15 process16 28 conhost.exe 26->28         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/259d4ade0f00567d2c5454fb715b8847fb568a4d1c6977cf1535af0373b4696d/
Threat name:
Win32.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-05-26 00:43:14 UTC
AV detection:
14 of 46 (30.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ewouvxqpablh2lcukt5xcw4ii75vncsndruxptyvgwxqg45unfwq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
044a48e38a2ce6f76042fae04889fb81e2563933d63c28532b4dba27b7599add
Formbook
04df6344497e9d1c321f32b61df87db549d179c6c66c3bf0b2cc7f6b1510040d
Formbook
1382bae50eece1846b8d858d0f975b900eb1a5908f789333c55b1341b1b0d57b
Formbook
40628d32ef0746f397d0d41b839530eae24d249dd2f414450a8d9dda03741d10
Formbook
83643d0493a1636b5c1e1ff03085e30519501e3081164006c411f07da8261541
Formbook
8855c73a66320b1d62c22f7af62feb301d13e4b68f4edfba64bf47473ad58c4a
Formbook
95eedb3eaf98ec12d5f66609278d43f94e1f635420d413ee0672bbf9434aafa4
Formbook
b55552391ee123f26e577b412c0df78bd0a59644ec510d1e7e708feff12a2abb
Formbook
e07c6115d9384a13918a22ac6f22631f78a9f18f8eaf3a945c6ba80ba91d713e
Formbook
edff9b174a171438f2433112957718f27abe1a825bfb7694362270d362c78911
Formbook
+ 5'566 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210526-t282nltjyn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.ztcru.com/gad0/
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/259d4ade0f00567d2c5454fb715b8847fb568a4d1c6977cf1535af0373b4696d

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

Executable exe 259d4ade0f00567d2c5454fb715b8847fb568a4d1c6977cf1535af0373b4696d

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/162593/

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