MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ca5c3b92cc3d548da5a93007d123a5bf220cb07710b4db37c6516b140e789fba. 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 2 File information Comments
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SHA256 hash: ca5c3b92cc3d548da5a93007d123a5bf220cb07710b4db37c6516b140e789fba
SHA3-384 hash: 32d80479dcd33f19724683eefba2ad797c072f9165672559397e8d74858de7334a992840088f9a6c151527fb91a65421
SHA1 hash: ae676b639919fe9b024c43940d3d5cc0cf6e50d6
MD5 hash: 5b54442b3e484a94fa157b0744c54287
humanhash: blossom-stairway-october-robin
File name:emezx.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:748'544 bytes
First seen:2022-04-19 20:29:47 UTC
Last seen:2022-04-19 21:57:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:F2wrnTJ4zM4mlGErxv2x/rN9HWunItiOTKBbc9vryDh7FB2xg64nQ1Anxca831ht:F2CSlLtNxWECKkuDh7FBiGxAbt
Threatray 14'989 similar samples on MalwareBazaar
TLSH T161F4232421E857B1DABD5BF8A63248D547B3692E6132D62C4DC3B4CB9811FA3CE61F13
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 James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
238
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/264703/
Detection(s):
SecuriteInfo.com.Trojan.MSIL.AgentTesla.EQJ.MTB.7419.20818.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/625f1bd8ffe27d51190f43cf/reports/f2b4c493-ac7f-4823-8569-fc613b142acb/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/0322b72b-2535-4359-97e2-9f149649c9f6
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/979115
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found 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)
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
Self deletion via cmd delete
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 detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 611601 Sample: emezx.exe Startdate: 19/04/2022 Architecture: WINDOWS Score: 100 31 www.eskitadir.store 2->31 35 Found malware configuration 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 emezx.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\emezx.exe.log, ASCII 11->29 dropped 53 Tries to detect virtualization through RDTSC time measurements 11->53 55 Injects a PE file into a foreign processes 11->55 15 emezx.exe 11->15         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 Queues an APC in another process (thread injection) 15->63 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.froesmame.com 188.114.96.7, 49750, 80 CLOUDFLARENETUS European Union 18->33 43 System process connects to network (likely due to code injection or exploit) 18->43 22 explorer.exe 18->22         started        signatures11 process12 signatures13 45 Self deletion via cmd delete 22->45 47 Modifies the context of a thread in another process (thread injection) 22->47 49 Maps a DLL or memory area into another process 22->49 51 Tries to detect virtualization through RDTSC time measurements 22->51 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/ca5c3b92cc3d548da5a93007d123a5bf220cb07710b4db37c6516b140e789fba/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2022-04-19 20:28:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
25 of 42 (59.52%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0d913321824b24f168daf6da5e888c9700fb5ed5e3bc06bd24be670c1a10fcb7
Formbook
43933efdb6406f03c3505c5bc398a841cb55ffbdf254cdcb6bd5cac87320a1cd
Formbook
52a948983c37f9056c1c2701179cb3698eb8c077faacd622ba26aef8055388ed
Formbook
8523b78ec725e01d19eebfcc0ddd20f717ff3780f199116814628cf6078c3672
Formbook
899615d89ed1fb1460cc0271763148d9fef6286e4714a4028bbdbadb6e6b9a30
Formbook
c693f2f43531ac27c22d4abe354cd66fa4014a60d1df090b22dfe5a76a97c4d7
Formbook
d18ee31980399f171c8219a6d14ad83f3d61017f8d14e44c6f3f3bd067eccdf7
Formbook
d727b63c6bcf81ea3c6a345f8435ad103f37c11c1b2cc89f9fee1f7253a26f9f
Formbook
e9a5fa1e217bd7dbbb5b055250c3818d3372a77cfe3cb2f397e251583accfd6f
Formbook
e9deef760186498e9b4d075c784b6170bc976a767652f4a5228215fd1b1841cc
Formbook
+ 14'979 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:g02e rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220419-y95ggaahan/
Behaviour
Enumerates system info in registry
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
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
860b474a3394c7d83ef87699342b8869853331bb50e8c0d518e63666c349e094
MD5 hash:
4753501bad1bea0a3f178296068e6a65
SHA1 hash:
dd86ef8caabd28157cc86a3fee24a154dccc8ae2
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/371fb27a-b148-486b-b380-91091330d49a/
Parent samples :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 hash:
d15f09618343654d6d9bf4891bcecaed9e97402ae68388fa8b52e1c721570a88
MD5 hash:
472a47fa62928272ba2d465ef5862039
SHA1 hash:
ed2d74e5c1c7bda36b4593e94a98cca887fe4444
Link:
https://www.unpac.me/results/371fb27a-b148-486b-b380-91091330d49a/
SH256 hash:
1d51342c5510f13c51ea9ca7b530c9171e584be87495cb497a138c7be619a35c
MD5 hash:
f16d2671594ced5e59f9a32fa1507a6d
SHA1 hash:
d66df4ee54e89f762d995fbc9bb10086933c7d2c
Link:
https://www.unpac.me/results/371fb27a-b148-486b-b380-91091330d49a/
SH256 hash:
7172472f86ff1ff133d5c8ba5bad21ecad8457bf416a5f54e95bee9606639e7d
MD5 hash:
e70ed9e06e6161eebd8c96f36e7b50fa
SHA1 hash:
1789866b0f4ba135471a28d8eaea75151b1bb2c8
Link:
https://www.unpac.me/results/371fb27a-b148-486b-b380-91091330d49a/
SH256 hash:
ca5c3b92cc3d548da5a93007d123a5bf220cb07710b4db37c6516b140e789fba
MD5 hash:
5b54442b3e484a94fa157b0744c54287
SHA1 hash:
ae676b639919fe9b024c43940d3d5cc0cf6e50d6
Link:
https://www.unpac.me/results/371fb27a-b148-486b-b380-91091330d49a/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/ca5c3b92cc3d548da5a93007d123a5bf220cb07710b4db37c6516b140e789fba

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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/264703/
  
URLhaus
https://urlhaus.abuse.ch/url/2096984/

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