MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9469fcaa1fdedbca5dea10fbc8908e549bd80111eebeb817b1f74d6355fdff66. 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
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SHA256 hash: 9469fcaa1fdedbca5dea10fbc8908e549bd80111eebeb817b1f74d6355fdff66
SHA3-384 hash: 4792af9519b34d1ffdfb9734e7473c7125ae7f7910b4c24fdfdcc97e4d375e7cba36973195ad771208890f5b74d59f08
SHA1 hash: 75e9a0c4ca67ddd2c21353e03a2d80881aca3bc4
MD5 hash: 36089a492ec3710e15a4b5a0261d249b
humanhash: lithium-thirteen-paris-happy
File name:EKSTRE.exe
Download: download sample
Signature Formbook
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File size:219'365 bytes
First seen:2022-10-27 11:38:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 29b61e5a552b3a9bc00953de1c93be41 (174 x Formbook, 82 x AgentTesla, 81 x Loki)
ssdeep 6144:qweEpm/FpVprq8ELucHE4VS08uIaijEeHd:bQzqikTnbiQ8
TLSH T1F5241227A1E2E4BFD15B43314A79D297F4BF6B004A2111C79BA05FDF9132BC7C61A1A2
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 lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
226
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
EKSTRE.exe
Verdict:
Malicious activity
Analysis date:
2022-10-27 11:41:29 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/52034a4a-92f9-44d6-95f1-62fd2423a15c

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/324855/
Detection(s):
SecuriteInfo.com.Trojan.Garf.Gen.7.30271.10789.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Reading critical registry keys
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/45954/overview
Behaviour
MalwareBazaar
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/afb6ea55-b90b-4633-b209-58c56ab3f1bb
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1099240
Signature
Antivirus detection for dropped file
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)
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 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 signatures2 2 Behavior Graph ID: 731891 Sample: EKSTRE.exe Startdate: 27/10/2022 Architecture: WINDOWS Score: 100 47 Malicious sample detected (through community Yara rule) 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 Yara detected FormBook 2->51 53 3 other signatures 2->53 11 EKSTRE.exe 18 2->11         started        process3 file4 31 C:\Users\user\AppData\...\rwwudzwrpr.exe, PE32 11->31 dropped 14 rwwudzwrpr.exe 11->14         started        process5 signatures6 63 Antivirus detection for dropped file 14->63 65 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->65 67 Maps a DLL or memory area into another process 14->67 69 Tries to detect virtualization through RDTSC time measurements 14->69 17 rwwudzwrpr.exe 14->17         started        process7 signatures8 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Sample uses process hollowing technique 17->43 45 Queues an APC in another process (thread injection) 17->45 20 explorer.exe 17->20 injected process9 dnsIp10 33 www.resetdog.com 188.114.97.3, 49697, 80 CLOUDFLARENETUS European Union 20->33 35 bradentonroofingcontractors.com 160.153.93.229, 49698, 80 AS-26496-GO-DADDY-COM-LLCUS United States 20->35 37 www.bradentonroofingcontractors.com 20->37 55 System process connects to network (likely due to code injection or exploit) 20->55 24 chkdsk.exe 20->24         started        signatures11 process12 signatures13 57 Modifies the context of a thread in another process (thread injection) 24->57 59 Maps a DLL or memory area into another process 24->59 61 Tries to detect virtualization through RDTSC time measurements 24->61 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9469fcaa1fdedbca5dea10fbc8908e549bd80111eebeb817b1f74d6355fdff66/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2022-10-27 11:46:13 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sru7zkq733n4uxpkcd54reeoksn5qair527lqf5r65gwgvp575ta._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:et02 rat spyware stealer trojan
Link:
https://tria.ge/reports/221027-nr99wscael/
Behaviour
Enumerates system info in registry
Gathers network information
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
Formbook payload
Formbook
Unpacked files
SH256 hash:
4119ded25b9d01e546ee42d7a45082c2504ea991f6eccb7c74427a9321c1fb5a
MD5 hash:
74b9bd019c741c26889aa89a6a2d6456
SHA1 hash:
a9e8ebbd7a8fbd51aed0fc08a50f11bb91b5b644
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/00e44e30-9eb3-4c92-a676-997ac3d2fb45/
Parent samples :
5b2bee7d89137e5b5c3eae900446b022c482a5ecd56ede64214ec95498c0f35e
13f17498233c027b2634373a0bd1f1978748102b7cfb798ef52d34c48b92661c
3a48a55ee6f9ace1e0b8042458f9d16deb6ff58970873c2e9f063c60f6821127
dc3f7072eb60a4282bd3f6e8fa600c17a9c9f8ade539111bcadcab024a186455
5ab3c03297b5f627ff9ae8b6234c9789c03ba6e497d2bb9672272662a184a328
1bcbf1dce6780dbfb1b1ad1d86f25d4b7a50063be5b4640f8939085980c4e00c
9469fcaa1fdedbca5dea10fbc8908e549bd80111eebeb817b1f74d6355fdff66
1e1725100ca63de1addb3e668dbbef572a683beb2bf3c1648181ec1cc3479cf5
SH256 hash:
4ff7e7524ab6d4ed40e6bb4235f48bec1796e63038c49475b88e572c2b82bf52
MD5 hash:
90767bfc8096035406556162057d9cf2
SHA1 hash:
9826c892953d56ce9cd2f5bd9d9bac04318fa8eb
Link:
https://www.unpac.me/results/00e44e30-9eb3-4c92-a676-997ac3d2fb45/
SH256 hash:
9469fcaa1fdedbca5dea10fbc8908e549bd80111eebeb817b1f74d6355fdff66
MD5 hash:
36089a492ec3710e15a4b5a0261d249b
SHA1 hash:
75e9a0c4ca67ddd2c21353e03a2d80881aca3bc4
Link:
https://www.unpac.me/results/00e44e30-9eb3-4c92-a676-997ac3d2fb45/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.18
Link:
https://yomi.yoroi.company/submissions/9469fcaa1fdedbca5dea10fbc8908e549bd80111eebeb817b1f74d6355fdff66

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin

File information

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

Malspam

Formbook

Executable exe 9469fcaa1fdedbca5dea10fbc8908e549bd80111eebeb817b1f74d6355fdff66

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/324855/

Comments