MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c5066450d674e2d7729d0acb5d3b571c948064c68bf82efc27497b56ddfb562d. 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 2 File information Comments
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SHA256 hash: c5066450d674e2d7729d0acb5d3b571c948064c68bf82efc27497b56ddfb562d
SHA3-384 hash: f44286b8aa748e9523d5f4e0e449337b714616b9ac26c0f067c2420e4afa859b8342e675e6000e8725a2453f5b6bf856
SHA1 hash: 4bef0bfa8de1d50a3804f3af6394673fbe2cf81a
MD5 hash: 3374b87be5da25a09046d0b59ccc34c7
humanhash: hydrogen-alaska-blossom-california
File name:3374b87be5da25a09046d0b59ccc34c7.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:749'568 bytes
First seen:2022-12-06 14:26:15 UTC
Last seen:2022-12-06 16:31:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:jwluhmomPZefCJBhaDUA7UAQ1PSxbUYW+DceP2NObN4VEsjJGPtqvyuv/m:eomxiiBhaDUAFQ1qazU5uUXvQF3m
TLSH T1D6F4124433F89B26D0BEABF7947750240BB6BD16A885F7199D8170DF5A32F900A20F67
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 30f0e0ecc8e0f030 (6 x SnakeKeylogger, 6 x AgentTesla, 5 x Formbook)
Reporter abuse_ch
Tags:103-232-53-228 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
190
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
3374b87be5da25a09046d0b59ccc34c7.exe
Verdict:
Malicious activity
Analysis date:
2022-12-06 14:28:24 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4e55a5f7-6429-4dc2-a08a-54e05140d699

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/343503/
Detection(s):
SecuriteInfo.com.Trojan.Siggen19.18804.28425.23244.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/638f5138f6e448d42df76c44/reports/416faf20-8798-4af4-96c0-e92444e17a38/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/649c0496-3616-40b3-b4b3-fd92287a9098
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1128985
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 761709 Sample: JB2eX5kDTJ.exe Startdate: 06/12/2022 Architecture: WINDOWS Score: 100 51 www.netflixtaggerapply.com 2->51 59 Snort IDS alert for network traffic 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 Antivirus detection for URL or domain 2->63 65 8 other signatures 2->65 9 JB2eX5kDTJ.exe 7 2->9         started        13 XkAsuB.exe 5 2->13         started        signatures3 process4 file5 43 C:\Users\user\AppData\Roaming\XkAsuB.exe, PE32 9->43 dropped 45 C:\Users\user\...\XkAsuB.exe:Zone.Identifier, ASCII 9->45 dropped 47 C:\Users\user\AppData\Local\...\tmp4E74.tmp, XML 9->47 dropped 49 C:\Users\user\AppData\...\JB2eX5kDTJ.exe.log, ASCII 9->49 dropped 75 Uses schtasks.exe or at.exe to add and modify task schedules 9->75 77 Adds a directory exclusion to Windows Defender 9->77 79 Injects a PE file into a foreign processes 9->79 15 JB2eX5kDTJ.exe 9->15         started        18 powershell.exe 21 9->18         started        20 schtasks.exe 1 9->20         started        81 Multi AV Scanner detection for dropped file 13->81 83 Machine Learning detection for dropped file 13->83 22 XkAsuB.exe 13->22         started        24 schtasks.exe 1 13->24         started        26 XkAsuB.exe 13->26         started        signatures6 process7 signatures8 89 Modifies the context of a thread in another process (thread injection) 15->89 91 Maps a DLL or memory area into another process 15->91 93 Sample uses process hollowing technique 15->93 95 Queues an APC in another process (thread injection) 15->95 28 explorer.exe 15->28 injected 32 conhost.exe 18->32         started        34 conhost.exe 20->34         started        36 conhost.exe 24->36         started        process9 dnsIp10 53 hf9blwwuwpx7j8k.live 216.18.208.202, 49695, 80 WEBNXUS United States 28->53 55 www.bullcute.com 91.195.240.94, 49708, 49709, 80 SEDO-ASDE Germany 28->55 57 16 other IPs or domains 28->57 85 System process connects to network (likely due to code injection or exploit) 28->85 87 Performs DNS queries to domains with low reputation 28->87 38 rundll32.exe 13 28->38         started        41 explorer.exe 28->41         started        signatures11 process12 signatures13 67 Tries to steal Mail credentials (via file / registry access) 38->67 69 Tries to harvest and steal browser information (history, passwords, etc) 38->69 71 Modifies the context of a thread in another process (thread injection) 38->71 73 Maps a DLL or memory area into another process 38->73
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c5066450d674e2d7729d0acb5d3b571c948064c68bf82efc27497b56ddfb562d/
Threat name:
ByteCode-MSIL.Trojan.RemLoader
Create hunting rule
Status:
Malicious
First seen:
2022-12-06 14:27:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yudgiugwotrno4u5blfv2o2xdskiazggrp4c57bhjf5vnxp3kywq._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:pgnt rat spyware stealer trojan
Link:
https://tria.ge/reports/221206-rsfcpaab5s/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook
Unpacked files
SH256 hash:
a64c3291537b61a8e347a958f83843793713596587c8021e0cdb313dab46ffee
MD5 hash:
47ebed7eb4048c6156ca473d1e870de7
SHA1 hash:
692039d66f71fdc81398b1129b165195303e4086
Detections:
XLoader
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/5765b96e-4784-492b-b122-ce7e086c2a96/
Parent samples :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 hash:
1dd741e15b6b62895a5a00735ec7f4bdc86a3285f087048a39df8a7fa33a74af
MD5 hash:
8f8b738d3a54b913894665bc2eb9989c
SHA1 hash:
85ad9f68794c4c560e540bf0325eea53a9903f97
Link:
https://www.unpac.me/results/5765b96e-4784-492b-b122-ce7e086c2a96/
SH256 hash:
75397c6f4f15b7e6efc951e171875a12d079f19c40246d69d758512def7ec66c
MD5 hash:
d2007dc3c9294a0ba7fe514791dd72c4
SHA1 hash:
c4c5cea5be3b2117e0bda761ad51e44591e79c3f
Link:
https://www.unpac.me/results/5765b96e-4784-492b-b122-ce7e086c2a96/
SH256 hash:
922915132a628d0050bf03a473370544dde3323627fb4adcba3f1ba869537e50
MD5 hash:
1ecb63625d636b0b8f8ebdece9fa80c3
SHA1 hash:
5623d5ad21fc63893011bae7e4709c51219fcc1c
Link:
https://www.unpac.me/results/5765b96e-4784-492b-b122-ce7e086c2a96/
SH256 hash:
340ba2312d5cdfc3d89f3f35f627187dcb406e5afea134bc76b04f52f4285df3
MD5 hash:
85f9290aa8900e9fd74b01ee23125706
SHA1 hash:
310eb5e4aea5471b74a6385f1da283b9d8e3d698
Link:
https://www.unpac.me/results/5765b96e-4784-492b-b122-ce7e086c2a96/
SH256 hash:
690e1f2467fdd585e78966466457906c3ab46ddd13edaf662aef3092b88914d7
MD5 hash:
84c3bbd866cdd617c6c4c5034c845389
SHA1 hash:
17fb7cc77159e1f6335a8a02a5b0916b40161a27
Link:
https://www.unpac.me/results/5765b96e-4784-492b-b122-ce7e086c2a96/
SH256 hash:
c5066450d674e2d7729d0acb5d3b571c948064c68bf82efc27497b56ddfb562d
MD5 hash:
3374b87be5da25a09046d0b59ccc34c7
SHA1 hash:
4bef0bfa8de1d50a3804f3af6394673fbe2cf81a
Link:
https://www.unpac.me/results/5765b96e-4784-492b-b122-ce7e086c2a96/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c5066450d674/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/c5066450d674e2d7729d0acb5d3b571c948064c68bf82efc27497b56ddfb562d

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
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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.

Web download

Formbook

Executable exe c5066450d674e2d7729d0acb5d3b571c948064c68bf82efc27497b56ddfb562d

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2447268/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/343503/

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