MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2f37c93400fdd92118fb19c318001038022836301f00dd805b0e97fd53773d5d. 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: 9


Intelligence 9 IOCs YARA 8 File information Comments
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SHA256 hash: 2f37c93400fdd92118fb19c318001038022836301f00dd805b0e97fd53773d5d
SHA3-384 hash: 4871d94b03565c52d4527da0a9a5b66bde1f5cdac40894c3be199528a9d42bae6707188f0af38fe783f543338adb78c8
SHA1 hash: 8441f93049f689b2c7e55f870dd3f35c88c90bc5
MD5 hash: 215ed7bff2d6764ffba5733ab96357e3
humanhash: timing-arkansas-jupiter-lithium
File name:Product_Inquiry.xll
Download: download sample
Signature Formbook
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File size:3'584 bytes
First seen:2021-06-14 06:02:11 UTC
Last seen:2021-06-14 06:48:33 UTC
File type:DLL dll
MIME type:application/x-dosexec
imphash d4e6ea9ec0efe39b1cb7664384899294 (2 x Formbook)
ssdeep 24:ZHGStXRm/6mvt3XkDyv30NP7HHAWeilIvTy9xoDWS/MRvrBL/Aki:Zvt9mlq23ePjNlI7y9xovovrBLzi
TLSH 367186A213F0C0F0E15826716D535709D5B9B2F0D77297343BE07A1F2C7B551286CB42
Reporter lowmal3
Tags:dll FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
86
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.DownLoader.origin.3839.11984.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
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.
Malware family:
Generic Malware
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/49372a22-aa12-4719-bacb-0f8453bf0109
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/801524
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Document exploit detected (process start blacklist hit)
Found malware configuration
Injects a PE file into a foreign processes
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
Office process drops PE file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: MS Office Product Spawning Exe in User Dir
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
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 433920 Sample: Product_Inquiry.xll Startdate: 14/06/2021 Architecture: WINDOWS Score: 100 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Antivirus detection for URL or domain 2->60 62 12 other signatures 2->62 8 EXCEL.EXE 22 27 2->8         started        12 explorer.exe 2->12         started        process3 dnsIp4 34 www.esportesht.com.br 8->34 36 esportesht.com.br 162.241.2.66, 49734, 80 OIS1US United States 8->36 28 C:\Users\user\AppData\...\wirelomo48282.exe, PE32 8->28 dropped 30 C:\Users\user\AppData\Local\...\wir[1].exe, PE32 8->30 dropped 15 wirelomo48282.exe 4 8->15         started        38 www.ljubljanapower.com 195.149.84.100, 49768, 80 WORLD-NEWSGR United Kingdom 12->38 40 www.sshopp.com 76.223.35.103, 49769, 80 AMAZON-02US United States 12->40 72 System process connects to network (likely due to code injection or exploit) 12->72 19 help.exe 12->19         started        file5 signatures6 process7 file8 32 C:\Users\user\AppData\...\wirelomo48282.exe, PE32 15->32 dropped 42 Multi AV Scanner detection for dropped file 15->42 44 Writes to foreign memory regions 15->44 46 Allocates memory in foreign processes 15->46 48 Injects a PE file into a foreign processes 15->48 21 wirelomo48282.exe 15->21         started        50 Modifies the context of a thread in another process (thread injection) 19->50 52 Maps a DLL or memory area into another process 19->52 54 Tries to detect virtualization through RDTSC time measurements 19->54 24 cmd.exe 1 19->24         started        signatures9 process10 signatures11 64 Multi AV Scanner detection for dropped file 21->64 66 Modifies the context of a thread in another process (thread injection) 21->66 68 Maps a DLL or memory area into another process 21->68 70 3 other signatures 21->70 26 conhost.exe 24->26         started        process12
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/2f37c93400fdd92118fb19c318001038022836301f00dd805b0e97fd53773d5d/
Threat name:
Win32.Trojan.Generic
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Status:
Suspicious
First seen:
2021-06-10 05:08:18 UTC
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=f434snaa7xmscgh3dhbrqaaqhabcqnrqd4an3ac3b2l72u3xhvoq._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210614-f6dz3ggy1n/
Behaviour
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.share-event.info/wlns/
Unpacked files
SH256 hash:
2f37c93400fdd92118fb19c318001038022836301f00dd805b0e97fd53773d5d
MD5 hash:
215ed7bff2d6764ffba5733ab96357e3
SHA1 hash:
8441f93049f689b2c7e55f870dd3f35c88c90bc5
Link:
https://www.unpac.me/results/43449db5-b87b-4be2-9362-535f748a51b1/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.16
Link:
https://yomi.yoroi.company/submissions/2f37c93400fdd92118fb19c318001038022836301f00dd805b0e97fd53773d5d

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:Email_stealer_bin_mem
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Author:James_inthe_box
Description:Email in files like avemaria
Rule name:gen_Excel_xll_addin_suspicious
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Author:@JohnLaTwC
Description:Detects suspicious XLL add-ins to Excel
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
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Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
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Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:IPPort_combo_mem
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Author:James_inthe_box
Description:IP and port combo
Rule name:Select_from_enumeration
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Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
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Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:UAC_bypass_bin_mem
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Author:James_inthe_box
Description:UAC bypass in files like avemaria

File information

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

Malspam

Formbook

DLL dll 2f37c93400fdd92118fb19c318001038022836301f00dd805b0e97fd53773d5d

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments