MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b207cf6e0fe84692f4311e2768d913bae8005da5f7ed4cf1cee2459a6f62faa9. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
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SHA256 hash: b207cf6e0fe84692f4311e2768d913bae8005da5f7ed4cf1cee2459a6f62faa9
SHA3-384 hash: 36b02091cefc3ed8514b922a3b9a967aef4cd810db0fbeb8c0b1f4b48ae9172bc3c6284be5654184928f0649c9812797
SHA1 hash: 6a55b482eab522e4c70d5f588573687b73444a84
MD5 hash: cdd5b0078abe46c33fec9ca31022cbdb
humanhash: coffee-two-quiet-pasta
File name:siam.exe
Download: download sample
Signature Formbook
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File size:258'502 bytes
First seen:2021-10-19 03:41:15 UTC
Last seen:2021-10-19 04:58:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 6144:wBlL/cXDx0ad6mn6ZMGt9Ba9SObYS9qiweOt/89dzT:Cefd96vYnLqB//89dv
Threatray 10'787 similar samples on MalwareBazaar
TLSH T1D644122654A084B7C29316B42DBEE326C3B5A5510A7D229F1FF01F2769357C7E90F2A3
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter ankit_anubhav
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
223
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/198363/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.2.24566.5407.UNOFFICIAL
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Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
60%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/616e3e8d9a5a1e91c5c51d5a/reports/070b1bcb-7f54-40a4-a736-9b37da770e66/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/4ea690d9-fb94-436c-9a54-eab36181f1db
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/872795
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
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
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 505223 Sample: siam.exe Startdate: 19/10/2021 Architecture: WINDOWS Score: 100 31 www.expatinternetphone.com 2->31 33 cname.vercel-dns.com 2->33 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 4 other signatures 2->47 11 siam.exe 17 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\pvluui.dll, PE32 11->29 dropped 59 Detected unpacking (changes PE section rights) 11->59 61 Tries to detect virtualization through RDTSC time measurements 11->61 63 Injects a PE file into a foreign processes 11->63 15 siam.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.portjob63.com 103.224.212.220, 49826, 80 TRELLIAN-AS-APTrellianPtyLimitedAU Australia 18->35 37 motivatedmarketinggroup.com 81.169.145.94, 49831, 80 STRATOSTRATOAGDE Germany 18->37 39 13 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 51 Performs DNS queries to domains with low reputation 18->51 22 msiexec.exe 18->22         started        signatures11 process12 signatures13 53 Self deletion via cmd delete 22->53 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/b207cf6e0fe84692f4311e2768d913bae8005da5f7ed4cf1cee2459a6f62faa9/
Threat name:
Win32.Trojan.Nsisx
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Status:
Malicious
First seen:
2021-10-19 03:03:05 UTC
AV detection:
13 of 45 (28.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wid463qp5bdjf5brdytwrwitxluaaxnf67wuz4oo4jczu33c7kuq._file
Verdict:
malicious
Label(s):
formbook
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Similar samples:
2dc7525f9ee6e09a25f840b457bf5b0ba228c4697e1f3d4b81bd2964d2eafc61
Formbook
378ee60fb2d81639f413f10e21dbb12a052d37fd5e1c56bc160e9a9ad7351e89
Formbook
74c957dc1c72edda17a97da08e96d10cee7ad0bae2d1ef0ed904e92f458cf8dc
Formbook
87f8905d999f293634fddf1bff47a614041bdfaa2f07ef19fe70e5296a7b086e
Formbook
ae55ee08f18b57a38a47ed9bc161b7833e35c31b014e8579ae904a2d4d7c63e3
Formbook
c6ac9c7f14e2fe9196fe5fdd2a30236a157d4c04c0e5c9dc84e8592984756717
Formbook
+ 10'777 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:w240 loader rat
Link:
https://tria.ge/reports/211019-d9c21afbf4/
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
Deletes itself
Loads dropped DLL
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.palisadesburgers.com/w240/
Unpacked files
SH256 hash:
b207cf6e0fe84692f4311e2768d913bae8005da5f7ed4cf1cee2459a6f62faa9
MD5 hash:
cdd5b0078abe46c33fec9ca31022cbdb
SHA1 hash:
6a55b482eab522e4c70d5f588573687b73444a84
Link:
https://www.unpac.me/results/7921bf24-2d57-49bd-bffe-307227ffb05e/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.47
Link:
https://yomi.yoroi.company/submissions/b207cf6e0fe84692f4311e2768d913bae8005da5f7ed4cf1cee2459a6f62faa9

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

Formbook

Executable exe b207cf6e0fe84692f4311e2768d913bae8005da5f7ed4cf1cee2459a6f62faa9

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/198363/

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