MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b33f2bc956ec9e983992bd165347b7041b03ee77749640a04451efb3ea2cf5d8. 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: 14


Intelligence 14 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b33f2bc956ec9e983992bd165347b7041b03ee77749640a04451efb3ea2cf5d8
SHA3-384 hash: 0c3bcd847d5833a3d9a5f4c7c1c9ca5db73d2194efb78d7e9e50d56f34cca62439df1d0478a7f5ccca75d6a36badd4e4
SHA1 hash: a523ec4412d7a8f07d7ef20ad5e250b46fbaae62
MD5 hash: 7e8df85d24aabc66495d12943250999c
humanhash: spring-oregon-march-ohio
File name:7e8df85d24aabc66495d12943250999c.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:196'826 bytes
First seen:2022-04-28 07:01:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (719 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 3072:l1NjcVVnLpPunb3CtNg/wypC1KrGFNDaDz1Vy8CguWCHPV7kahaqDUGTnGEmkPt:HNeZmzz7GF1af1VyNHxCGTG6Pt
Threatray 15'218 similar samples on MalwareBazaar
TLSH T112140294B2E68017DC5205310C3BABA72FBE685735729B4F03607EAC7E265D1E20F766
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
265
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/267455/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.2.6896.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/626a3bb72b32b1c37c6aa240/reports/fcb9fc30-e988-4d8c-b6ce-90c1173dab1a/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/d33c7b76-2efb-4cec-a614-7d799a36b2a9
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/984606
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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 dropped file
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 617101 Sample: ejv3qOD25r.exe Startdate: 28/04/2022 Architecture: WINDOWS Score: 100 34 www.skazhiraku.net 2->34 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Antivirus detection for URL or domain 2->54 56 4 other signatures 2->56 12 ejv3qOD25r.exe 18 2->12         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\nwwuulh.exe, PE32 12->32 dropped 15 nwwuulh.exe 12->15         started        process6 signatures7 66 Multi AV Scanner detection for dropped file 15->66 68 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->68 70 Tries to detect virtualization through RDTSC time measurements 15->70 72 Injects a PE file into a foreign processes 15->72 18 nwwuulh.exe 15->18         started        process8 signatures9 42 Modifies the context of a thread in another process (thread injection) 18->42 44 Maps a DLL or memory area into another process 18->44 46 Sample uses process hollowing technique 18->46 48 Queues an APC in another process (thread injection) 18->48 21 explorer.exe 18->21 injected process10 dnsIp11 36 yourdmvhometeam.com 204.232.141.225, 49757, 80 RACKSPACEUS United States 21->36 38 mikunandina.com 34.202.63.170, 49758, 80 AMAZON-AESUS United States 21->38 40 9 other IPs or domains 21->40 58 System process connects to network (likely due to code injection or exploit) 21->58 25 msdt.exe 21->25         started        signatures12 process13 signatures14 60 Modifies the context of a thread in another process (thread injection) 25->60 62 Maps a DLL or memory area into another process 25->62 64 Tries to detect virtualization through RDTSC time measurements 25->64 28 cmd.exe 1 25->28         started        process15 process16 30 conhost.exe 28->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b33f2bc956ec9e983992bd165347b7041b03ee77749640a04451efb3ea2cf5d8/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-04-28 07:02:05 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
20 of 42 (47.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wm7sxskw5spjqomsxulfgr5xaqnqh3txoslebicekhx3h2rm6xma._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
6e2d552e111d1303a2b72809cd77f7aab66ce3e7bdfc243f0dcb53c30d272736
Formbook
84c208a81f0251fddaaafd620cbcbf4e004cf195c1bb3e72a4200669a7f50859
Formbook
950352c91affd434f21c97b82e49e2f55642eee65540646cca5b45384257f026
Formbook
982e727a53a27d2bfbaea608209b315bc892947a1ef954033f1b29c687b6e001
Formbook
e17af127923617602c5b3aefa68aa22e97a1c6e9636b0ad69719719e3535c2ae
Formbook
e226334635541cd4581643d39b8d8f19d1ac7519e6d3e833dcf48d4c0b1c1080
Formbook
+ 15'208 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:itq4 loader rat suricata
Link:
https://tria.ge/reports/220428-hs9rvsfdcr/
Behaviour
Modifies registry class
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
Loads dropped DLL
Executes dropped EXE
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
6871e3fc257bd687b4613d10db9035b0c0befcc13fecdd6bbb97f9b46eaaf3bc
MD5 hash:
11327cc1077e11e39e82a40d8c175bfb
SHA1 hash:
200e4a92fa3571fa9eb5e7ecda20721eb4795faf
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/c86015fd-4aec-4ac1-a490-81584d2a13eb/
Parent samples :
e226334635541cd4581643d39b8d8f19d1ac7519e6d3e833dcf48d4c0b1c1080
6e2d552e111d1303a2b72809cd77f7aab66ce3e7bdfc243f0dcb53c30d272736
950352c91affd434f21c97b82e49e2f55642eee65540646cca5b45384257f026
e17af127923617602c5b3aefa68aa22e97a1c6e9636b0ad69719719e3535c2ae
53f2b01b46fea6b60894eef19535ceb20e37f661839e607734c54ec5e3753200
6a8e45f9894c54efd1aff20e1ced278b688fe93b46fbace3a3b19d77b447b742
b33f2bc956ec9e983992bd165347b7041b03ee77749640a04451efb3ea2cf5d8
14641fbe2c1d62713c7893a32a0fca7e60ef1c517f2e3a1b5e1b32f1240f86b7
49c0c4810d07a4328281b5d8e63d51be03732beac6875589c5c4b800c81e1f8a
9451d316042f4dc89e61afcebdff67ccb533e14af5fd3cfe58f64c57c7af81c3
f12b517eabc8adbbbed4d0117f70bd42e00e59b3a02c8dab3d4ab95d6e1ada0c
5fa578aae701d9ee019d13aa98240d0c2cb899a8218c6ce86b99bfa2a7005fef
583634fdc373ec476a7affbb11474a78596cede93a39322f0026ad98b1424cc5
86b01fa8a457b9f282f50f1754a8ce931bb9d64f9f14c1d08d973ee1bb469559
f89fdaf70a745763294ddf8e9470b39a9575b5edb408fe40abc72531fdd89824
f373dca0591ab9127485c7c3176eb2d5b639b5281837486589884ce8f24d9dde
SH256 hash:
263cebc44690f692c85987603a00f9f3db8753764ba3f1e9357aba3263276d41
MD5 hash:
93be539cda5047c51968a341a70ae30c
SHA1 hash:
f5fb2a4874192795270ea5bb1298980874b25868
Link:
https://www.unpac.me/results/c86015fd-4aec-4ac1-a490-81584d2a13eb/
SH256 hash:
7237cfba5b8e4a8a9647409c94148dda55477e54a42773b8928098be7ca01d74
MD5 hash:
4b57dd5348f2b2979d81ed068c264262
SHA1 hash:
8998d3461cc1c826d187e1c56a256f9ca831e659
Link:
https://www.unpac.me/results/c86015fd-4aec-4ac1-a490-81584d2a13eb/
SH256 hash:
b33f2bc956ec9e983992bd165347b7041b03ee77749640a04451efb3ea2cf5d8
MD5 hash:
7e8df85d24aabc66495d12943250999c
SHA1 hash:
a523ec4412d7a8f07d7ef20ad5e250b46fbaae62
Link:
https://www.unpac.me/results/c86015fd-4aec-4ac1-a490-81584d2a13eb/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b33f2bc956ec/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/b33f2bc956ec9e983992bd165347b7041b03ee77749640a04451efb3ea2cf5d8

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

File information

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

Web download

Formbook

Executable exe b33f2bc956ec9e983992bd165347b7041b03ee77749640a04451efb3ea2cf5d8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2164453/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/267455/

Comments