MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7f7af3d03481bb68e11a68e958ce6d8e96701a053eaa458e7010a4a85643cad3. 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 1 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7f7af3d03481bb68e11a68e958ce6d8e96701a053eaa458e7010a4a85643cad3
SHA3-384 hash: 6ff4b4e275a2a347689b5805a0d4a8569438e6ca1459e2fd3db15c72b2f6ce7da5b25c9e4ab6aa506d1ecf7b3f67d9f6
SHA1 hash: 14b12aeacdd0ae6ba8e1215c192f513c29bfef6f
MD5 hash: aa4b9c043e923952fee38447b9dd0b43
humanhash: equal-avocado-oranges-hydrogen
File name:aa4b9c043e923952fee38447b9dd0b43
Download: download sample
Signature Formbook
Create hunting rule
File size:707'072 bytes
First seen:2021-08-05 14:30:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f1f21c88e9cb261ec581191bb4c538e3 (2 x RemcosRAT, 1 x Formbook, 1 x BitRAT)
ssdeep 12288:cLJ8IaEF3CbhMemzpeVhpEj7c0DFtIGnu8:cLJRaElQMePyNtI
Threatray 6'595 similar samples on MalwareBazaar
TLSH T112E45C46B3E0817EC091177A4D8EEE6D791C6D906CB5200B3AE83F5D6FB9A05276903F
dhash icon fce5d39a543434c4 (3 x RemcosRAT, 2 x Formbook, 1 x BitRAT)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
302
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
TT-Form-EUR57,890.xlsx
Verdict:
Malicious activity
Analysis date:
2021-08-05 13:39:40 UTC
Tags:
encrypted exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/86149210-633f-468d-b144-9f5596150394

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/176681/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware1.28528.20709.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Deleting a recently created file
Launching the default Windows debugger (dwwin.exe)
Sending a UDP request
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/90101865-f3b4-4c91-a0e8-89d7b0241084
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/827418
Signature
Allocates memory in foreign processes
Creates a thread in another existing process (thread injection)
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)
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: Execution from Suspicious Folder
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 459847 Sample: jmK31F112B Startdate: 05/08/2021 Architecture: WINDOWS Score: 100 70 www.mypursuitpodcast.com 2->70 72 www.delhibudokankarate.com 2->72 74 2 other IPs or domains 2->74 108 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->108 110 Malicious sample detected (through community Yara rule) 2->110 112 Multi AV Scanner detection for submitted file 2->112 114 4 other signatures 2->114 11 jmK31F112B.exe 1 24 2->11         started        signatures3 process4 dnsIp5 76 sn-files.fe.1drv.com 11->76 78 pxpura.sn.files.1drv.com 11->78 80 onedrive.live.com 11->80 56 C:\Users\Public\Libraries\...\Ibbuweg.exe, PE32 11->56 dropped 116 Writes to foreign memory regions 11->116 118 Allocates memory in foreign processes 11->118 120 Creates a thread in another existing process (thread injection) 11->120 122 Injects a PE file into a foreign processes 11->122 16 mshta.exe 11->16         started        19 cmd.exe 1 11->19         started        21 cmd.exe 1 11->21         started        file6 signatures7 process8 signatures9 82 Modifies the context of a thread in another process (thread injection) 16->82 84 Maps a DLL or memory area into another process 16->84 86 Sample uses process hollowing technique 16->86 88 2 other signatures 16->88 23 explorer.exe 4 2 16->23 injected 25 reg.exe 1 19->25         started        27 conhost.exe 19->27         started        29 cmd.exe 1 21->29         started        31 conhost.exe 21->31         started        process10 process11 33 Ibbuweg.exe 16 23->33         started        37 Ibbuweg.exe 16 23->37         started        39 explorer.exe 23->39         started        41 conhost.exe 25->41         started        43 conhost.exe 29->43         started        dnsIp12 58 sn-files.fe.1drv.com 33->58 60 pxpura.sn.files.1drv.com 33->60 62 onedrive.live.com 33->62 90 Multi AV Scanner detection for dropped file 33->90 92 Machine Learning detection for dropped file 33->92 94 Writes to foreign memory regions 33->94 45 dialer.exe 33->45         started        64 sn-files.fe.1drv.com 37->64 66 pxpura.sn.files.1drv.com 37->66 68 onedrive.live.com 37->68 96 Allocates memory in foreign processes 37->96 98 Creates a thread in another existing process (thread injection) 37->98 100 Injects a PE file into a foreign processes 37->100 48 ieinstal.exe 37->48         started        102 Modifies the context of a thread in another process (thread injection) 39->102 104 Maps a DLL or memory area into another process 39->104 106 Tries to detect virtualization through RDTSC time measurements 39->106 50 help.exe 39->50         started        52 cmd.exe 1 39->52         started        signatures13 process14 signatures15 124 Modifies the context of a thread in another process (thread injection) 45->124 126 Maps a DLL or memory area into another process 45->126 128 Sample uses process hollowing technique 45->128 130 Tries to detect virtualization through RDTSC time measurements 50->130 54 conhost.exe 52->54         started        process16
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7f7af3d03481bb68e11a68e958ce6d8e96701a053eaa458e7010a4a85643cad3/
Threat name:
Win32.Trojan.Delf
Create hunting rule
Status:
Malicious
First seen:
2021-08-05 13:49:52 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
19 of 27 (70.37%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=p55phubuqg5wryi2nduvrttnr2lhagqfh2veldtqccskqvsdzljq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
22bd5ba035c9dcdda222f812537d8b49241b50c55042fd3b902ca8b36d17a398
Formbook
236348545989c7d1816067f0e7bf78c80d4782e2ac28ab6d9ddbb1a2d4f71cc4
Formbook
760b2466db1fdc2d2c1651a730cfd6c14bfbcbd8f69eeb56ec8426d46784f4b3
Formbook
8395de2fb2940f93de9e2058bae551d3631bb5e93b23b396c5042532f0d2de58
Formbook
b875a5e660e0e64042fc182c3739d6916568132cf1cc2f8919abe516ac4cf534
Formbook
e6bd5f8475731bcca5f6b74327a68ee4b7fa5b0662521feff1d92424da149151
Formbook
+ 6'585 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:6mam loader persistence rat suricata
Link:
https://tria.ge/reports/210805-cf561zdvr6/
Behaviour
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Blocklisted process makes network request
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.mobiessence.com/6mam/
Unpacked files
SH256 hash:
c873bd224bbf6f82aa169f079016ebdf7690b40a7db5dd8cfefd26404a9d50ca
MD5 hash:
d328f4ade4dd3cd77b3c055c6a7a7937
SHA1 hash:
5d2437502c20efaadd44d27bd5f2f748bdb48512
Link:
https://www.unpac.me/results/ac3e89e4-729b-416f-914a-01949c464f7a/
SH256 hash:
7f7af3d03481bb68e11a68e958ce6d8e96701a053eaa458e7010a4a85643cad3
MD5 hash:
aa4b9c043e923952fee38447b9dd0b43
SHA1 hash:
14b12aeacdd0ae6ba8e1215c192f513c29bfef6f
Link:
https://www.unpac.me/results/ac3e89e4-729b-416f-914a-01949c464f7a/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/7f7af3d03481/report/overview.html
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/7f7af3d03481bb68e11a68e958ce6d8e96701a053eaa458e7010a4a85643cad3

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: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.

Web download

Formbook

Executable exe 7f7af3d03481bb68e11a68e958ce6d8e96701a053eaa458e7010a4a85643cad3

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1508460/
Cape
Cape
https://www.capesandbox.com/analysis/176681/

Comments


Avatar
zbet commented on 2021-08-05 14:30:10 UTC

url : hxxp://198.144.176.246/sender/vbc.exe