MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4cef2a77679e6330da6bbc3836f6e1a3b7fcc0b905319131062faf3ad30a24c5. 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: 4cef2a77679e6330da6bbc3836f6e1a3b7fcc0b905319131062faf3ad30a24c5
SHA3-384 hash: a2fdf055698e4b1cbf1ebdcce40f9a47c981fa03ed92c903f920497596520830f23c4b5839218011fab8d8286d705f35
SHA1 hash: 78400dbe4433b23158de26141d6201a8d952b326
MD5 hash: 4a8d634cb74d298478615ecac198b3ae
humanhash: glucose-quiet-oranges-mars
File name:4cef2a77679e6330da6bbc3836f6e1a3b7fcc0b905319131062faf3ad30a24c5
Download: download sample
Signature Formbook
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File size:590'848 bytes
First seen:2022-07-07 10:48:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'751 x AgentTesla, 19'657 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 6144:9ajx3dpZXyyaiX8jdfDfvwZ7mcn3Y3FwM65AnOlHDvplcKGYOGh0+H84kKOzw4TV:gnkjdrnwZ6QWwM65AnOlzpdGXLnzn9V
TLSH T140C4F04132B4C7A3D6A923F2C4AA94F427766E16FE01E16F6DC13ED43AB67E20105E17
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
229
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
4cef2a77679e6330da6bbc3836f6e1a3b7fcc0b905319131062faf3ad30a24c5
Verdict:
Malicious activity
Analysis date:
2022-07-07 10:49:48 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/0019d527-7d94-4475-aa5c-81d8e54f1561

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/285477/
Detection(s):
SecuriteInfo.com.IL.Trojan.MSILZilla.19314.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Launching a process
Creating a file
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed powershell wacatac
Link:
https://www.filescan.io/uploads/62c6ba656ee6df015bbeea0d/reports/621dd313-442f-4a53-8dc6-ae24080f6281/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/d7cbf84d-a395-4bd0-9e0c-7301952735a9
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1026337
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
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 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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 658832 Sample: XYy9LnepCl Startdate: 07/07/2022 Architecture: WINDOWS Score: 100 31 www.aimaie.com 2->31 33 name.shoplazza.store 2->33 35 Snort IDS alert for network traffic 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Antivirus detection for URL or domain 2->39 41 7 other signatures 2->41 11 XYy9LnepCl.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\XYy9LnepCl.exe.log, ASCII 11->29 dropped 49 Writes to foreign memory regions 11->49 51 Allocates memory in foreign processes 11->51 53 Injects a PE file into a foreign processes 11->53 15 RegSvcs.exe 11->15         started        signatures6 process7 signatures8 55 Modifies the context of a thread in another process (thread injection) 15->55 57 Maps a DLL or memory area into another process 15->57 59 Sample uses process hollowing technique 15->59 61 2 other signatures 15->61 18 explorer.exe 15->18 injected process9 process10 20 cscript.exe 18->20         started        signatures11 43 Modifies the context of a thread in another process (thread injection) 20->43 45 Maps a DLL or memory area into another process 20->45 47 Tries to detect virtualization through RDTSC time measurements 20->47 23 cmd.exe 1 20->23         started        25 explorer.exe 2 158 20->25         started        process12 process13 27 conhost.exe 23->27         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/4cef2a77679e6330da6bbc3836f6e1a3b7fcc0b905319131062faf3ad30a24c5/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-06-17 10:07:58 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jtxsu53htzrtbwtlxq4dn5xbuo37zqfzauyzcmigf6xtvuyketcq._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:a11e rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220707-mwne9afge7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
30b29c25703618d59824bd26663a8c95766c5cf5b34ad7487d3b4c30df6ea15e
MD5 hash:
bb1b1c6e0face3071fce89c63f6e586a
SHA1 hash:
2bdc29c4c5a4aa9eb4590a71a81f5f1d52207a8c
Detections:
win_formbook_g0
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win_formbook_auto
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FormBook
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Link:
https://www.unpac.me/results/22952644-3d9b-4d73-9da9-192d219d2041/
Parent samples :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 hash:
66127c96d4eec2f4a9a489df128220cb23c0da6d36e5ffb32bd20a1588140ea8
MD5 hash:
ffb65a6d385b7c3410dbf2108e2a1988
SHA1 hash:
98e7dd95663b7995997d0b6531679ee1958fc2f7
Link:
https://www.unpac.me/results/22952644-3d9b-4d73-9da9-192d219d2041/
SH256 hash:
5ae9c1547197bcebae16c29d3b09f3ae7c29dd83339d5f5488814e847a691a68
MD5 hash:
d33af2525fdf6ca1645c1321bfdf2363
SHA1 hash:
6ae1e9463ead27ac58688811c31ad9cbacfd73f5
Link:
https://www.unpac.me/results/22952644-3d9b-4d73-9da9-192d219d2041/
SH256 hash:
84238dc32dc2c72716d7233f509b43a45617e2a24ca07eecda58ae37a704b90b
MD5 hash:
1d6115ad56b1707c8afa1a65f22afc96
SHA1 hash:
58cbf25298e84cf9d91da78ae370ac5ddbb2c3fd
Link:
https://www.unpac.me/results/22952644-3d9b-4d73-9da9-192d219d2041/
SH256 hash:
4cef2a77679e6330da6bbc3836f6e1a3b7fcc0b905319131062faf3ad30a24c5
MD5 hash:
4a8d634cb74d298478615ecac198b3ae
SHA1 hash:
78400dbe4433b23158de26141d6201a8d952b326
Link:
https://www.unpac.me/results/22952644-3d9b-4d73-9da9-192d219d2041/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4cef2a77679e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/4cef2a77679e6330da6bbc3836f6e1a3b7fcc0b905319131062faf3ad30a24c5

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/285477/

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