MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3aec0a3b707390b1a000b0e7a6deb3bd7b8f84109b4335be6809694453fadc4c. 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: 17


Intelligence 17 IOCs YARA 2 File information Comments
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SHA256 hash: 3aec0a3b707390b1a000b0e7a6deb3bd7b8f84109b4335be6809694453fadc4c
SHA3-384 hash: 8f928bdc206a64fd6b68d806e8fea501c5b744fb9c019e56730c1ae597e4d11c71801b0c586a5e729f2139b7433e464e
SHA1 hash: 30ebd5e6c7f00a95ff634a5a73471747bc7c4a3f
MD5 hash: 30084963eaf9f9ae05f206f474c3dfab
humanhash: sierra-maine-diet-lake
File name:3aec0a3b707390b1a000b0e7a6deb3bd7b8f84109b4335be6809694453fadc4c
Download: download sample
Signature Formbook
Create hunting rule
File size:848'896 bytes
First seen:2023-01-10 11:20:47 UTC
Last seen:2023-01-10 12:46:42 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:lrBciKkg586aWHffLw4Xqh9vSdcr3nXXQw9jkhWf9GDTVngGYYibnVpy4RY/:FBZKB5O8fUh9Zr3XrqhWf9mTVpyqM+
TLSH T10B052A4CF3089D3AFDA993FD3692409E625E148D7470F7D08A89E0FD7234A9E1AEB505
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)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
186
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
3aec0a3b707390b1a000b0e7a6deb3bd7b8f84109b4335be6809694453fadc4c
Verdict:
Malicious activity
Analysis date:
2023-01-10 11:20:32 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/d107af94-bd05-44b8-afd2-3834195ba941

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/351472/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.64050821.23756.12016.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a file
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63bd4a21a70bef46551e29e9/reports/abee1f08-8eee-42fb-b6f3-846257d5b310/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/28eefe59-c5a9-482c-a27d-35b6288346e0
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1148651
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
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: 781383 Sample: 3W27PJXnfG.exe Startdate: 10/01/2023 Architecture: WINDOWS Score: 100 53 www.enweb2fa.info 2->53 55 enweb2fa.info 2->55 65 Malicious sample detected (through community Yara rule) 2->65 67 Sigma detected: Scheduled temp file as task from temp location 2->67 69 Multi AV Scanner detection for submitted file 2->69 71 7 other signatures 2->71 11 3W27PJXnfG.exe 7 2->11         started        15 rfwRFDYUwFf.exe 5 2->15         started        signatures3 process4 file5 45 C:\Users\user\AppData\...\rfwRFDYUwFf.exe, PE32 11->45 dropped 47 C:\Users\...\rfwRFDYUwFf.exe:Zone.Identifier, ASCII 11->47 dropped 49 C:\Users\user\AppData\Local\...\tmp85A9.tmp, XML 11->49 dropped 51 C:\Users\user\AppData\...\3W27PJXnfG.exe.log, ASCII 11->51 dropped 79 Uses schtasks.exe or at.exe to add and modify task schedules 11->79 81 Adds a directory exclusion to Windows Defender 11->81 17 RegSvcs.exe 11->17         started        20 powershell.exe 21 11->20         started        22 schtasks.exe 1 11->22         started        83 Multi AV Scanner detection for dropped file 15->83 85 Machine Learning detection for dropped file 15->85 24 RegSvcs.exe 15->24         started        26 schtasks.exe 1 15->26         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 17->57 59 Maps a DLL or memory area into another process 17->59 61 Sample uses process hollowing technique 17->61 63 2 other signatures 17->63 28 explorer.exe 17->28 injected 30 conhost.exe 20->30         started        32 conhost.exe 22->32         started        34 conhost.exe 26->34         started        process9 process10 36 chkdsk.exe 28->36         started        39 systray.exe 28->39         started        signatures11 73 Modifies the context of a thread in another process (thread injection) 36->73 75 Maps a DLL or memory area into another process 36->75 77 Tries to detect virtualization through RDTSC time measurements 36->77 41 cmd.exe 1 36->41         started        process12 process13 43 conhost.exe 41->43         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3aec0a3b707390b1a000b0e7a6deb3bd7b8f84109b4335be6809694453fadc4c/
Threat name:
ByteCode-MSIL.Trojan.Leonem
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Status:
Malicious
First seen:
2022-12-23 10:41:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
24 of 26 (92.31%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hlwauo3qooildiaawdt2nxvtxv5y7baqtnbtlptibfuuiu723rga._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:a19i rat spyware stealer trojan
Link:
https://tria.ge/reports/230110-nf1lbabe8s/
Behaviour
Creates scheduled task(s)
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
Checks computer location settings
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b8da3a44-f96c-4bd7-aeef-9b4c217d8a6b
Unpacked files
SH256 hash:
cce4a21afc74d7d48d862af5b0d8598fcd213ce5d331176dfa12257f43813ecd
MD5 hash:
44bf97f71cc12eca3ce5612ffabf366c
SHA1 hash:
909a19c4d99ef46ed6661902a30cefb3a2992d94
Detections:
FormBook
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win_formbook_auto
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win_formbook_g0
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Link:
https://www.unpac.me/results/fca7fc25-c4ba-41ea-8f8d-9a89b9de3692/
Parent samples :
cc306bb2d4ff7a9b6a4526abfe0ee05610bc1f34f8c4b96f465c44412558516f
9bdc185c4c52ab97921a7d99b7bfe6e22ac5be828d999b19e41983b3c79af0c9
3aec0a3b707390b1a000b0e7a6deb3bd7b8f84109b4335be6809694453fadc4c
6df873769694ef3980e2e19d8c657e4d993938b9c9ee8912a95f83027f1a2ea0
ab3c843f0e9a542dad1b81078283a788da46aa9cc99b63434cca85737d982d94
0ae02ccb00f91c7e5c7eab7f893c859e533a294dc868ee3c43904e5f835b97bc
SH256 hash:
3624268b1bf67fd3f560f345e5171f3a2f8968a776c23816ea76fc0ef41b0f03
MD5 hash:
1619753b625e58c25b73fbf1f0bff482
SHA1 hash:
c0d7922bdbc10ef0ee1606a40c2dedd22cb180d4
Link:
https://www.unpac.me/results/fca7fc25-c4ba-41ea-8f8d-9a89b9de3692/
SH256 hash:
903fa03caee458b56a112596468b4c63e243ce8a018520c7eedb5b8f84816e13
MD5 hash:
9b75aeff9f2f9a3fa395bcfd6e1f7d99
SHA1 hash:
7c33156c2e6bb67d04a79e42aa3f80b93f1eb848
Link:
https://www.unpac.me/results/fca7fc25-c4ba-41ea-8f8d-9a89b9de3692/
SH256 hash:
5e038ec6c2e85df17825cb611f20ff84ff419f119aeaafaebc119cb74ff126ac
MD5 hash:
945535fc5f49207a3533f6c434ac4d94
SHA1 hash:
514411ad7b37ac81c5ff15d339734c4db2708656
Link:
https://www.unpac.me/results/fca7fc25-c4ba-41ea-8f8d-9a89b9de3692/
SH256 hash:
340ba2312d5cdfc3d89f3f35f627187dcb406e5afea134bc76b04f52f4285df3
MD5 hash:
85f9290aa8900e9fd74b01ee23125706
SHA1 hash:
310eb5e4aea5471b74a6385f1da283b9d8e3d698
Link:
https://www.unpac.me/results/fca7fc25-c4ba-41ea-8f8d-9a89b9de3692/
SH256 hash:
3aec0a3b707390b1a000b0e7a6deb3bd7b8f84109b4335be6809694453fadc4c
MD5 hash:
30084963eaf9f9ae05f206f474c3dfab
SHA1 hash:
30ebd5e6c7f00a95ff634a5a73471747bc7c4a3f
Link:
https://www.unpac.me/results/fca7fc25-c4ba-41ea-8f8d-9a89b9de3692/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3aec0a3b7073/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/3aec0a3b707390b1a000b0e7a6deb3bd7b8f84109b4335be6809694453fadc4c

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
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Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/351472/

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