MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f76bfa847aeed38e192479d3adf23d57076fadc4db0ca782421fcae81fd918e. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4f76bfa847aeed38e192479d3adf23d57076fadc4db0ca782421fcae81fd918e
SHA3-384 hash: 995ede66b47bcec8624cf84b39c85c59bfaca39444e921ec1b9137143155aa83721d91d5ea6b09056bdc1684195367be
SHA1 hash: 205665c6bde65b89a8129b7703b279c9bf6b988b
MD5 hash: e83bb98581bbcf32c4aab383bd917ce9
humanhash: batman-robert-kansas-don
File name:weiss technik.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:282'806 bytes
First seen:2023-03-13 10:46:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 6144:PYa601F9a9hvtXrrAoOaO4JSFyFVAlCOLjiO0lKWVYF:PYKRkvtXHg4M2OPglK5F
Threatray 2'356 similar samples on MalwareBazaar
TLSH T15F541239A912CA1BDDD603710D7D2612A1FBEE67605C4B470724BBAC3E27601EE1EBD1
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.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 TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
217
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
weiss technik.exe
Verdict:
Malicious activity
Analysis date:
2023-03-13 10:47:32 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/923927bf-dd02-42c1-83a6-cc441111a958

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/373995/
Detection(s):
SecuriteInfo.com.Variant.Zusy.452601.355.26309.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Reading critical registry keys
Launching a process
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Query of malicious DNS domain
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/72940/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
comodo formbook nemesis overlay packed remcos shell32.dll zusy
Link:
https://www.filescan.io/uploads/640eff2c86958b4d2a276a16/reports/b9830574-8d3d-4255-a04a-42ef3262c2e0/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/4f76bfa847aeed38e192479d3adf23d57076fadc4db0ca782421fcae81fd918e
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9b907099-8c85-4a16-aa7c-db3645cdda21
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1192394
Signature
Antivirus detection for URL or domain
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 825292 Sample: weiss_technik.exe Startdate: 13/03/2023 Architecture: WINDOWS Score: 100 28 www.apisat2023.com 2->28 44 Snort IDS alert for network traffic 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for URL or domain 2->48 50 3 other signatures 2->50 10 weiss_technik.exe 19 2->10         started        signatures3 process4 file5 26 C:\Users\user\AppData\...\owkdtaxdoa.exe, PE32 10->26 dropped 13 owkdtaxdoa.exe 10->13         started        process6 signatures7 62 Multi AV Scanner detection for dropped file 13->62 64 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 13->64 66 Maps a DLL or memory area into another process 13->66 16 owkdtaxdoa.exe 13->16         started        process8 signatures9 36 Modifies the context of a thread in another process (thread injection) 16->36 38 Maps a DLL or memory area into another process 16->38 40 Sample uses process hollowing technique 16->40 42 Queues an APC in another process (thread injection) 16->42 19 explorer.exe 3 6 16->19 injected process10 dnsIp11 30 he.adsfzcvx.com 154.210.211.109, 49701, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 19->30 32 www.inigrey.com 185.104.45.106, 49712, 49713, 49714 UKRAINE-ASUA Ukraine 19->32 34 10 other IPs or domains 19->34 52 System process connects to network (likely due to code injection or exploit) 19->52 23 svchost.exe 13 19->23         started        signatures12 process13 signatures14 54 Tries to steal Mail credentials (via file / registry access) 23->54 56 Tries to harvest and steal browser information (history, passwords, etc) 23->56 58 Modifies the context of a thread in another process (thread injection) 23->58 60 Maps a DLL or memory area into another process 23->60
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4f76bfa847aeed38e192479d3adf23d57076fadc4db0ca782421fcae81fd918e/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-03-13 05:07:45 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j53l7kchv3wtrymsi6otvxzd2vyhn6w4jwymu6beeh6k5ap5sgha._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0f3e298df567408cd76e038782c3890da6b42514274555f57d2eb0c8117ebf15
Formbook
39156092712f27714fed918a43876cd6b85c9ad6d3ab6b96fe22e49eb2f34346
Formbook
48d4d0c2d682bbc507a63901694ca44bf3a6371895cc14f485eb9c110c8e4fb8
Formbook
50491f2b6ccfe301b5bd0d8ffe8e82a524a251c076856684deb7c3c6fa85d238
Formbook
60fe13a26cde812037097d97acc94f5ab707e86e09744fad56f07afd324401bf
Formbook
8aa4a5feee91f2caa993c9624153ee2ecbe97098fc7470a5103c408376b2a12a
Formbook
8ac965774bef91af710f65245ac06f9f5de2fea89c1e782c8af0f8f3c2139d7d
Formbook
9ada0ca121fe2b402b0da1728cd9f1fbb36d61a62fd40bbe8428756c329e04e8
Formbook
dc8ac0ea14e9f418a35bd58f5f495282c9eb6a0e5331c197daf21f69f6d29222
Formbook
+ 2'346 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230313-mvjexaca51/
Behaviour
Gathers network information
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
7d12cfe37221a6976e23409ea05821ac28e04175ae8fe8d0732766070d53b43f
MD5 hash:
70fad5b7a6db44f7bce9f04893deb50b
SHA1 hash:
cc4acb2b13445029f2f75e579a709b0f6010e3ed
Link:
https://www.unpac.me/results/ec26a63c-8423-4ff7-9bd3-8bf486f118ac/
SH256 hash:
4f76bfa847aeed38e192479d3adf23d57076fadc4db0ca782421fcae81fd918e
MD5 hash:
e83bb98581bbcf32c4aab383bd917ce9
SHA1 hash:
205665c6bde65b89a8129b7703b279c9bf6b988b
Link:
https://www.unpac.me/results/ec26a63c-8423-4ff7-9bd3-8bf486f118ac/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4f76bfa847ae/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/4f76bfa847aeed38e192479d3adf23d57076fadc4db0ca782421fcae81fd918e

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

Malspam

Formbook

Executable exe 4f76bfa847aeed38e192479d3adf23d57076fadc4db0ca782421fcae81fd918e

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/373995/

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