MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3097786feedaaac00e8cc6a96aea810733912c0f2205bb3abe6d2600c80eb54. 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: 10


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3097786feedaaac00e8cc6a96aea810733912c0f2205bb3abe6d2600c80eb54
SHA3-384 hash: fe9fe17e06db78dd56f87fef9cd5557d15f71d2d0507cf15b164102427db2023b9943328694945839dc108a99d9343f1
SHA1 hash: 285bfba8dea59784e70960d706ab5257e89c9a11
MD5 hash: 6e1c18fde290e251d2dbaa9f7348581d
humanhash: hot-solar-ohio-social
File name:proforma Invoice Sheet.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:789'504 bytes
First seen:2020-12-14 14:18:19 UTC
Last seen:2020-12-14 15:39:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'611 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:yWOrsnB6DHAa/cORj+yPXNX7XyPaayGZy5P+LDikgf:KrsnB6Dga/cORjxNXW75zik
Threatray 3'096 similar samples on MalwareBazaar
TLSH 5FF49E3D1DB66BF1F3765B394864A19993FFFAE3A713C81D3CE410C90B1191298E2929
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
163
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
proforma Invoice Sheet.exe
Verdict:
Malicious activity
Analysis date:
2020-12-14 14:20:45 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/fdac3dd7-bb7e-4518-aca6-44e814a4ab1b

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/107965/
Detection(s):
SecuriteInfo.com.BehavesLike.Win32.Generic.bc.23853.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a process with a hidden window
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Result
Gathering data
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/562199
Signature
.NET source code contains very large strings
Antivirus detection for URL or domain
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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)
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: Scheduled temp file as task from temp location
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 330190 Sample: proforma Invoice Sheet.exe Startdate: 14/12/2020 Architecture: WINDOWS Score: 100 43 www.talkinghorseequine.com 2->43 45 cdn.onenote.net 2->45 47 talkinghorseequine.com 2->47 55 Malicious sample detected (through community Yara rule) 2->55 57 Antivirus detection for URL or domain 2->57 59 Multi AV Scanner detection for dropped file 2->59 61 12 other signatures 2->61 11 proforma Invoice Sheet.exe 7 2->11         started        signatures3 process4 file5 35 C:\Users\user\AppData\Roaming\oxyJntbTE.exe, PE32 11->35 dropped 37 C:\Users\...\oxyJntbTE.exe:Zone.Identifier, ASCII 11->37 dropped 39 C:\Users\user\AppData\Local\...\tmp2DCA.tmp, XML 11->39 dropped 41 C:\Users\...\proforma Invoice Sheet.exe.log, ASCII 11->41 dropped 65 Injects a PE file into a foreign processes 11->65 15 proforma Invoice Sheet.exe 11->15         started        18 schtasks.exe 1 11->18         started        20 proforma Invoice Sheet.exe 11->20         started        signatures6 process7 signatures8 73 Modifies the context of a thread in another process (thread injection) 15->73 75 Maps a DLL or memory area into another process 15->75 77 Sample uses process hollowing technique 15->77 79 Queues an APC in another process (thread injection) 15->79 22 explorer.exe 15->22 injected 26 conhost.exe 18->26         started        process9 dnsIp10 49 www.ecomwealthfast.com 74.208.236.118, 49756, 80 ONEANDONE-ASBrauerstrasse48DE United States 22->49 51 landscapedesignvalley.com 34.102.136.180, 49752, 49757, 80 GOOGLEUS United States 22->51 53 7 other IPs or domains 22->53 63 System process connects to network (likely due to code injection or exploit) 22->63 28 mstsc.exe 22->28         started        signatures11 process12 signatures13 67 Modifies the context of a thread in another process (thread injection) 28->67 69 Maps a DLL or memory area into another process 28->69 71 Tries to detect virtualization through RDTSC time measurements 28->71 31 cmd.exe 1 28->31         started        process14 process15 33 conhost.exe 31->33         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b3097786feedaaac00e8cc6a96aea810733912c0f2205bb3abe6d2600c80eb54/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-12-14 09:47:01 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wmexpbx65wvkyahizrvjnlvicbztsewa6iqfxm5l43jgadea5nka._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
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Formbook
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Formbook
b55e23e6276caef1b6268fa6f0a4e1351c8640fdc434948164093e1230228ced
Formbook
+ 3'086 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/201214-ay9st65j32/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.danneroll.com/mnc/
Unpacked files
SH256 hash:
b3097786feedaaac00e8cc6a96aea810733912c0f2205bb3abe6d2600c80eb54
MD5 hash:
6e1c18fde290e251d2dbaa9f7348581d
SHA1 hash:
285bfba8dea59784e70960d706ab5257e89c9a11
Link:
https://www.unpac.me/results/a3d0eb72-2092-47f5-a733-3ed93e7dc490/
SH256 hash:
9584f6d01e6452371cc9b4828030a13045d99c243c497b63628828e66aabe26f
MD5 hash:
7476e403eef14ac403c63c7279831780
SHA1 hash:
8387f558e30dc115987ac2b5c174a41302471abf
Link:
https://www.unpac.me/results/a3d0eb72-2092-47f5-a733-3ed93e7dc490/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b3097786feedaaac00e8cc6a96aea810733912c0f2205bb3abe6d2600c80eb54

File information

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

Malspam

Formbook

rar 83cd204612085ef4b52c9c636002643cfbbc567d617a934a9f424414fba64fff

Formbook

Executable exe b3097786feedaaac00e8cc6a96aea810733912c0f2205bb3abe6d2600c80eb54

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 83cd204612085ef4b52c9c636002643cfbbc567d617a934a9f424414fba64fff
Cape
Cape
https://www.capesandbox.com/analysis/107965/

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