MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1caa4a4e077cc954b65893bb0c11413afcaf185046d3d27277ddc2e9526a849c. 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: 10


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1caa4a4e077cc954b65893bb0c11413afcaf185046d3d27277ddc2e9526a849c
SHA3-384 hash: 08f8a091a6c8e5475b8682101412a80cd13f45af744ecf2bf9f3d31409f9d341abd39c5598af43b559afe8eadecf751c
SHA1 hash: 08b0b44caf0fa9e19dd43417e89bfc6c8494c1c0
MD5 hash: 40f359559c9e278d04419512254ccb4a
humanhash: glucose-nuts-cup-october
File name:1za109t4043832979.xll
Download: download sample
Signature Formbook
Create hunting rule
File size:1'363'456 bytes
First seen:2022-05-12 07:21:34 UTC
Last seen:2022-05-12 10:54:10 UTC
File type:Excel file xll
MIME type:application/x-dosexec
imphash 7e569b564dba0b34119990efd3d9dfc6 (4 x Formbook)
ssdeep 24576:EnnncnKW2MGX1RXVMfN/0q0QnbhlEMFN/iNo8+66Kaqm:LKWZAUb7r
Threatray 12'026 similar samples on MalwareBazaar
TLSH T15F55F157E3D7FA71E6ED52BA86B1DA3C176E74A29069B7497B405CCC29213038928F03
TrID 58.0% (.CPL) Windows Control Panel Item (generic) (197083/11/60)
34.3% (.OCX) Windows ActiveX control (116521/4/18)
3.0% (.EXE) Win64 Executable (generic) (10523/12/4)
1.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.3% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter cocaman
Tags:DHL FormBook xll


Avatar
cocaman
Malicious email (T1566.001)
From: "" EMU Logistics" <no-reply@emu.it>" (likely spoofed)
Received: "from emu.it (unknown [185.222.58.70]) "
Date: "12 May 2022 12:15:34 +0200"
Subject: "RE: Shipment Status waybill"
Attachment: "1za109t4043832979.xll"

Intelligence

File Origin
# of uploads :
3
# of downloads :
128
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malicious
File Type:
Office Add-Ins - Suspicious
Link:
https://app.docguard.net/1caa4a4e077cc954b65893bb0c11413afcaf185046d3d27277ddc2e9526a849c/results/dashboard
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/627cb5ba13f1480a3a185aa6/reports/ceb273d1-1b32-48e0-b9ba-7c66afdaefce/overview
Result
Verdict:
SUSPICIOUS
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
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/992450
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Document exploit detected (creates forbidden files)
Document exploit detected (drops PE files)
Document exploit detected (process start blacklist hit)
Encrypted powershell cmdline option found
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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
Office process drops PE file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Yara detected MSILDownloaderGeneric
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 624941 Sample: 1za109t4043832979.xll Startdate: 12/05/2022 Architecture: WINDOWS Score: 100 65 www.roesle-group.com 2->65 91 Found malware configuration 2->91 93 Malicious sample detected (through community Yara rule) 2->93 95 Antivirus detection for URL or domain 2->95 97 8 other signatures 2->97 13 cmd.exe 7 2 2->13         started        15 Csrzy.exe 14 3 2->15         started        signatures3 process4 dnsIp5 19 EXCEL.EXE 22 17 13->19         started        23 conhost.exe 13->23         started        73 162.159.130.233, 443, 49754 CLOUDFLARENETUS United States 15->73 75 cdn.discordapp.com 15->75 77 Machine Learning detection for dropped file 15->77 79 Encrypted powershell cmdline option found 15->79 25 powershell.exe 14 15->25         started        signatures6 process7 file8 61 C:\Users\user\...\AudioAppJKTQOSXFHZ.exe, PE32 19->61 dropped 99 Document exploit detected (creates forbidden files) 19->99 27 AudioAppJKTQOSXFHZ.exe 16 6 19->27         started        32 conhost.exe 25->32         started        signatures9 process10 dnsIp11 71 cdn.discordapp.com 162.159.134.233, 443, 49751 CLOUDFLARENETUS United States 27->71 63 C:\Users\user\AppData\Roaming\...\Csrzy.exe, PE32 27->63 dropped 101 Machine Learning detection for dropped file 27->101 103 Encrypted powershell cmdline option found 27->103 105 Writes to foreign memory regions 27->105 107 2 other signatures 27->107 34 InstallUtil.exe 27->34         started        37 InstallUtil.exe 27->37         started        39 powershell.exe 15 27->39         started        41 2 other processes 27->41 file12 signatures13 process14 signatures15 81 Modifies the context of a thread in another process (thread injection) 34->81 83 Maps a DLL or memory area into another process 34->83 85 Sample uses process hollowing technique 34->85 87 Queues an APC in another process (thread injection) 34->87 43 explorer.exe 34->43 injected 89 Tries to detect virtualization through RDTSC time measurements 37->89 45 conhost.exe 39->45         started        process16 process17 47 control.exe 43->47         started        50 Csrzy.exe 43->50         started        dnsIp18 109 Maps a DLL or memory area into another process 47->109 111 Tries to detect virtualization through RDTSC time measurements 47->111 53 cmd.exe 47->53         started        67 162.159.133.233, 443, 49755 CLOUDFLARENETUS United States 50->67 69 cdn.discordapp.com 50->69 113 Encrypted powershell cmdline option found 50->113 55 powershell.exe 50->55         started        signatures19 process20 process21 57 conhost.exe 53->57         started        59 conhost.exe 55->59         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1caa4a4e077cc954b65893bb0c11413afcaf185046d3d27277ddc2e9526a849c/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-05-12 06:41:26 UTC
File Type:
PE (Dll)
Extracted files:
2
AV detection:
15 of 26 (57.69%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dsveutqhptevjnsyso5qyekbhl6k6gcqi3j5e4tx3xbosutkqsoa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
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Formbook
3664c59f198b6e3ec2bc254b9758fe20046b4cddd0a35f3e9c8fbf631c5a8a50
Formbook
4464483a19cb1ad8b1bac91be04eaf972807cdb48f10b1fc5b675563ba1fe350
Formbook
4b08ecf8154c2aec9f610d64a7f86adcd35c42211c0b30e1ded43f05b64a5bd2
Formbook
aa99576f50fbf176a2d463fa84591fb651c1751a344949a01b93fb8afa297b2d
Formbook
d4228fb80428de5db9495b19ed4a9366bd3120ba5889eecd82f4a0b1d827f81a
Formbook
e433cde831e792acecea6b52f79f62d5b0c94db1acc016359f61e9c3150c144e
Formbook
+ 12'016 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:ky3u loader persistence rat suricata
Link:
https://tria.ge/reports/220512-h68fysbab7/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
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/1caa4a4e077cc954b65893bb0c11413afcaf185046d3d27277ddc2e9526a849c

File information

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

Malspam

Formbook

Excel file xll 1caa4a4e077cc954b65893bb0c11413afcaf185046d3d27277ddc2e9526a849c

(this sample)

  
Delivery method
Distributed via e-mail attachment
  
Dropping
Formbook

Comments