MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28ef8e19f33ee91bd8cd2e0fcbc9b9cf328313c543f65aaeb116646916e99fb0. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 28ef8e19f33ee91bd8cd2e0fcbc9b9cf328313c543f65aaeb116646916e99fb0
SHA3-384 hash: 4b45d45da6300947eccf9b520a42d9b6290a76be61aa1e602aac067fea1013c4da5ba319d4a4dce7b6d03b209bfb3c8e
SHA1 hash: af3034c29e64e05e6b34e95af89b2adddccae60c
MD5 hash: 4e499fe8e4c2342c70ce3690f98cae19
humanhash: kansas-equal-chicken-lion
File name:obizx.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:808'960 bytes
First seen:2022-08-22 13:45:19 UTC
Last seen:2022-08-22 14:40:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:DGXphEFBd8MxKnR925Ug/d+hrG7QDP54UjbHbEI6nINEHslgDavUcjGnWxNrdJ5t:V8MqR6dU3Pxv7Ed0C
Threatray 16'973 similar samples on MalwareBazaar
TLSH T1D105F17933F5B99FD4A2D5714968AEA0A2E03A3BEB1B4203F497115DF91C6C39F041A3
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 2cdeb98bb6968ea8 (3 x AgentTesla, 2 x NanoCore, 1 x Formbook)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
247
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
obizx.exe
Verdict:
Suspicious activity
Analysis date:
2022-08-22 04:41:11 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7181e794-f329-44d5-930c-d8c2fa23895e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/300232/
Detection(s):
SecuriteInfo.com.BackDoor.RatNET.2.5777.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan.PackedNET.1496.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Sending a custom TCP request
Launching a process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/630388a6c7e5977f84e4d8bb/reports/33cd8174-f201-4a20-bf7d-c28805582d76/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1fa927fb-8ed1-4cd6-a6f4-89387b7c0911
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1055555
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Deletes itself after installation
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
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 harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses ipconfig to lookup or modify the Windows network settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 688072 Sample: obizx.exe Startdate: 22/08/2022 Architecture: WINDOWS Score: 100 23 www.tamedandframed.co.uk 2->23 31 Malicious sample detected (through community Yara rule) 2->31 33 Antivirus detection for URL or domain 2->33 35 Antivirus / Scanner detection for submitted sample 2->35 37 6 other signatures 2->37 8 obizx.exe 3 2->8         started        signatures3 process4 file5 21 C:\Users\user\AppData\Local\...\obizx.exe.log, ASCII 8->21 dropped 39 Uses ipconfig to lookup or modify the Windows network settings 8->39 41 Injects a PE file into a foreign processes 8->41 12 obizx.exe 8->12         started        signatures6 process7 signatures8 43 Modifies the context of a thread in another process (thread injection) 12->43 45 Maps a DLL or memory area into another process 12->45 47 Sample uses process hollowing technique 12->47 49 Queues an APC in another process (thread injection) 12->49 15 ipconfig.exe 13 12->15         started        18 explorer.exe 12->18 injected process9 dnsIp10 51 Tries to steal Mail credentials (via file / registry access) 15->51 53 Tries to harvest and steal browser information (history, passwords, etc) 15->53 55 Deletes itself after installation 15->55 59 2 other signatures 15->59 25 thevegetalian.com 91.184.0.100, 49725, 80 HOSTNETNL Netherlands 18->25 27 www.myriversideresortqb.com 199.59.243.220, 49724, 80 BODIS-NJUS United States 18->27 29 www.thevegetalian.com 18->29 57 System process connects to network (likely due to code injection or exploit) 18->57 signatures11
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/28ef8e19f33ee91bd8cd2e0fcbc9b9cf328313c543f65aaeb116646916e99fb0/
Threat name:
Win32.Trojan.Swotter
Create hunting rule
Status:
Malicious
First seen:
2022-08-21 21:08:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
52
AV detection:
20 of 40 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fdxy4gpth3urxwgnfyh4xsnzz4zige6fip3fvlvrczsgsfxjt6ya._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
026b1bb30922adb4dd69cef48762fd5595a4ad728ed063b1a7b595564d7fc759
Formbook
049d7eff2158529f5b40f93cb3a5fb3d16ac99313bca428d4c047e344ade25fa
Formbook
0d4a3632247cb7111743166b1eea26ef50d6ba2c67c3658ec4d7d8dfcdf00081
Formbook
28ca5dea8ca246a61d262c54081363c158312e46634bcf4b886358ee08dee89f
Formbook
4e50e27798aadc14b8bd88d3e15f48e4217517f609ed1f5bd8ea06522f8b8baf
Formbook
5592a734ee2bc348a27f402338843bd0333bc9de08d9f391ed8c91c87dd2b245
Formbook
65365eacd51c7064c0845a99df19605965607c70324e993d0f886ccbf3fe3635
Formbook
bfbee93177edcd85c7406e28ea0edbf3e83bf4d608bbce8a7b24064eec5b822d
Formbook
cde8d1b67e70594bf9013c5c15e66f3a821d0d79844c2cd98ec1bd8c7f7726c5
Formbook
ef536a9686ddfaa7a42ae810085edf82cb8c6f6aacd0e955825653f246fcfa62
Formbook
+ 16'963 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/220822-q2ypysgdhk/
Behaviour
Modifies Internet Explorer settings
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
Suspicious use of SetThreadContext
Checks computer location settings
Reads user/profile data of web browsers
Blocklisted process makes network request
Unpacked files
SH256 hash:
8a6b47a718c32024087ddf680f447fa92620112acb97b5e0d02a89e2b1a617f6
MD5 hash:
3addec9f1399f8159933ec60e5dc8e86
SHA1 hash:
286f2e71868d0957660ef2c932d62e17bb2e5b83
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/895f9d68-bede-47e1-abf8-b1be6f5dd9e1/
Parent samples :
28ef8e19f33ee91bd8cd2e0fcbc9b9cf328313c543f65aaeb116646916e99fb0
c5f31d9d3c1a204926f1a87c5873b01ba37153af5e55594ac5037091d56026ac
c7557c5b17e5816621fe3613fc728513f3cc7868f46a3740b762413a460922a9
4994e7acf451ce7d8abdccb79cce806011f09bd49a811fcd2689f32a51fdee09
24dbe688a855d9f0c1db91574e24837ab537b63a2e69c8a55240b14f151e5ed2
84780665db026468f4cbe135a5f51f838688b9e208aa126620114debcbc3fa23
SH256 hash:
1efb95fcbeb725f52af46c06491147f34d760307d885f262e1c7e2be70620062
MD5 hash:
d03f474b4183f4adfa9755d04155da91
SHA1 hash:
f519d51f65f536c57c58bd69c4610935388574c5
Link:
https://www.unpac.me/results/895f9d68-bede-47e1-abf8-b1be6f5dd9e1/
SH256 hash:
551ef0181260a5ab5728a618c2e86443753aaeb425e6c3b1346dfb0a661c73af
MD5 hash:
3c7205139e6aabd7de040b15021c24ed
SHA1 hash:
e4c66e4ca1bb3b5488d7c4ba7fddc8cac118955f
Link:
https://www.unpac.me/results/895f9d68-bede-47e1-abf8-b1be6f5dd9e1/
SH256 hash:
bdd9c4a46abd618f162bfc80f264f5bb3155230c43a3c7257dd06d9c68b3a08a
MD5 hash:
9e02cc08051b15764ce8690bdc2a33f9
SHA1 hash:
c2bb1fe8f2022310352de16a0f906f4937344b67
Link:
https://www.unpac.me/results/895f9d68-bede-47e1-abf8-b1be6f5dd9e1/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/895f9d68-bede-47e1-abf8-b1be6f5dd9e1/
SH256 hash:
28ef8e19f33ee91bd8cd2e0fcbc9b9cf328313c543f65aaeb116646916e99fb0
MD5 hash:
4e499fe8e4c2342c70ce3690f98cae19
SHA1 hash:
af3034c29e64e05e6b34e95af89b2adddccae60c
Link:
https://www.unpac.me/results/895f9d68-bede-47e1-abf8-b1be6f5dd9e1/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/28ef8e19f33e/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/28ef8e19f33ee91bd8cd2e0fcbc9b9cf328313c543f65aaeb116646916e99fb0

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
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

  
Delivery method
Other
  
URLhaus
https://urlhaus.abuse.ch/url/2271081/
Cape
Cape
https://www.capesandbox.com/analysis/300232/

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