MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efd1897cf1232815bb1f1fbe8496804186d7c48c6bfa05b2dea6bd3bb0b67ed0. 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 File information Comments

SHA256 hash: efd1897cf1232815bb1f1fbe8496804186d7c48c6bfa05b2dea6bd3bb0b67ed0
SHA3-384 hash: 764a126119976a2107456d043421add4fbacd689f72a1b9cb8f8d0c1ff58c0f76d2df74e242b382ef8a90520973d25c7
SHA1 hash: 827e1716937a9579a71cce148e01afda49a18f7c
MD5 hash: 5723a775452272c5b0508628a1d94364
humanhash: ceiling-summer-enemy-green
File name:po.exe
Download: download sample
Signature Formbook
File size:867'328 bytes
First seen:2021-10-20 21:39:20 UTC
Last seen:2021-10-21 02:02:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 3ffe5a9a24da83fb277b548d938597c8 (5 x Formbook, 3 x RemcosRAT, 1 x BitRAT)
ssdeep 12288:rHPNFplQQTfQAEpHxdE3Jc9AYPeyqY99j9gqmfGVIJe7B:Lx+OkpHxdKJc4yp99j9gvwIJ4
Threatray 495 similar samples on MalwareBazaar
TLSH T132058C13EE95423FC03BC9B89C6BD5355975F8E03D1328855ED03FA40DB57A0683AAEA
File icon (PE):PE icon
dhash icon fedcbb4d750f4c4c (9 x Formbook, 5 x RemcosRAT, 2 x NetWire)
Reporter malwarelabnet
Tags:exe FormBook xloader

Intelligence


File Origin
# of uploads :
2
# of downloads :
170
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook keylogger
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Creates a thread in another existing process (thread injection)
Drops PE files to the user root directory
Injects a PE file into a foreign processes
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Execution from Suspicious Folder
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 506643 Sample: po.exe Startdate: 20/10/2021 Architecture: WINDOWS Score: 100 49 www.yourvetnurse.com 2->49 51 www.golaveg.com 2->51 75 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 Multi AV Scanner detection for submitted file 2->79 81 4 other signatures 2->81 10 po.exe 1 21 2->10         started        signatures3 process4 dnsIp5 69 p0zk6q.dm.files.1drv.com 10->69 71 onedrive.live.com 10->71 73 dm-files.fe.1drv.com 10->73 47 C:\Users\Public\Mqkunt.exe, PE32 10->47 dropped 101 Drops PE files to the user root directory 10->101 103 Writes to foreign memory regions 10->103 105 Allocates memory in foreign processes 10->105 107 2 other signatures 10->107 15 DpiScaling.exe 10->15         started        18 cmd.exe 1 10->18         started        20 cmd.exe 1 10->20         started        file6 signatures7 process8 signatures9 111 Modifies the context of a thread in another process (thread injection) 15->111 113 Maps a DLL or memory area into another process 15->113 115 Sample uses process hollowing technique 15->115 117 2 other signatures 15->117 22 explorer.exe 4 2 15->22 injected 26 reg.exe 1 18->26         started        28 conhost.exe 18->28         started        30 cmd.exe 1 20->30         started        32 conhost.exe 20->32         started        process10 dnsIp11 63 www.rn-interior.com 103.83.81.254, 49823, 80 ZINIOSS-AS-INZiniosInformationTechnologyPvtLtdIN India 22->63 65 elmosky.net 162.241.217.72, 49835, 80 UNIFIEDLAYER-AS-1US United States 22->65 67 26 other IPs or domains 22->67 99 System process connects to network (likely due to code injection or exploit) 22->99 34 Mqkunt.exe 15 22->34         started        38 rundll32.exe 12 22->38         started        40 conhost.exe 26->40         started        42 conhost.exe 30->42         started        signatures12 process13 dnsIp14 53 p0zk6q.dm.files.1drv.com 34->53 55 onedrive.live.com 34->55 57 dm-files.fe.1drv.com 34->57 83 Multi AV Scanner detection for dropped file 34->83 85 Writes to foreign memory regions 34->85 87 Allocates memory in foreign processes 34->87 97 2 other signatures 34->97 44 secinit.exe 34->44         started        59 www.fcogstj.com 38->59 61 fcogstj.com 38->61 89 System process connects to network (likely due to code injection or exploit) 38->89 91 Modifies the context of a thread in another process (thread injection) 38->91 93 Maps a DLL or memory area into another process 38->93 95 Tries to detect virtualization through RDTSC time measurements 38->95 signatures15 process16 signatures17 109 Tries to detect virtualization through RDTSC time measurements 44->109
Threat name:
Win32.Downloader.FormBook
Status:
Malicious
First seen:
2021-10-20 11:39:39 UTC
AV detection:
13 of 28 (46.43%)
Threat level:
  3/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:bsz6 loader persistence rat suricata
Behaviour
Enumerates system info in registry
Modifies registry key
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
Adds Run key to start application
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.hosotructiep.online/bsz6/
Unpacked files
SH256 hash:
651d2f39c341c86341babbf45e367c1fe183f49348f3816f91920e08ed057d2a
MD5 hash:
100b966ad7ecd1ba763f069d4f1c27d6
SHA1 hash:
630ce76fda48fa229e41cf3e5b70f21af8288af0
Detections:
win_temple_loader_w0
SH256 hash:
efd1897cf1232815bb1f1fbe8496804186d7c48c6bfa05b2dea6bd3bb0b67ed0
MD5 hash:
5723a775452272c5b0508628a1d94364
SHA1 hash:
827e1716937a9579a71cce148e01afda49a18f7c
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

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