MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 89b7cd6b2e33c5c7d423c8814b56e7a7aef7ab3064c3fdcf4f4732bce3837b34. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
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SHA256 hash: 89b7cd6b2e33c5c7d423c8814b56e7a7aef7ab3064c3fdcf4f4732bce3837b34
SHA3-384 hash: 62e1ce8d2a2d34c73d48be82ff66bb311c7f19fc14a3b1c455e45765036dad9112c42c590fa403ea56566f4294b484a2
SHA1 hash: 2e13a0e4094aadcf2facb95ecc738e5c610bf2aa
MD5 hash: 594eb16eb878818396471fc8531d5cab
humanhash: may-twenty-grey-oven
File name:vbc.exe.vir
Download: download sample
Signature Formbook
Create hunting rule
File size:289'816 bytes
First seen:2022-06-24 07:34:41 UTC
Last seen:2022-06-24 08:54:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:zn4suQTzGqw9HjpURKdSTb600Mo7W9xR/U1yn+88vpFHFWXJ:z4zQTvwlqPTbIW9bs1y+8qT4Z
TLSH T13754E05BB7E5CF00C5A41472C0CF456523FAEA933732E765BF0A56990D423A3BD81B8A
TrID 52.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
22.4% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
7.5% (.EXE) Win64 Executable (generic) (10523/12/4)
4.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter KdssSupport
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
185
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
vbc.exe
Verdict:
Malicious activity
Analysis date:
2022-06-24 00:01:25 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/b8eb190a-6826-4ad1-94fb-2a1f4bc5c64c

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/282921/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Connecting to a non-recommended domain
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated overlay packed
Link:
https://www.filescan.io/uploads/62b56930666084d7254ae8ea/reports/5a297c5a-898c-4b84-a8b8-b82fe7b99c85/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a9cbde2f-f461-4ce6-983b-ed6a2f9166a7
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1019131
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 651627 Sample: vbc.exe.vir Startdate: 24/06/2022 Architecture: WINDOWS Score: 100 31 www.neyine286.com 2->31 33 www.arstechnice.com 2->33 39 Snort IDS alert for network traffic 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus detection for URL or domain 2->43 45 6 other signatures 2->45 9 vbc.exe.exe 1 2->9         started        signatures3 process4 file5 23 C:\Users\user\AppData\...\vbc.exe.exe.log, ASCII 9->23 dropped 53 Writes to foreign memory regions 9->53 55 Allocates memory in foreign processes 9->55 57 Injects a PE file into a foreign processes 9->57 59 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 9->59 13 cvtres.exe 9->13         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 13->61 63 Maps a DLL or memory area into another process 13->63 65 Sample uses process hollowing technique 13->65 67 2 other signatures 13->67 16 explorer.exe 13->16 injected process9 dnsIp10 25 www.rightlesspossible.xyz 16->25 27 www.expressdipcouriers.com 188.114.97.3, 49803, 80 CLOUDFLARENETUS European Union 16->27 29 4 other IPs or domains 16->29 35 System process connects to network (likely due to code injection or exploit) 16->35 37 Performs DNS queries to domains with low reputation 16->37 20 WWAHost.exe 16->20         started        signatures11 process12 signatures13 47 Modifies the context of a thread in another process (thread injection) 20->47 49 Maps a DLL or memory area into another process 20->49 51 Tries to detect virtualization through RDTSC time measurements 20->51
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/89b7cd6b2e33c5c7d423c8814b56e7a7aef7ab3064c3fdcf4f4732bce3837b34/
Threat name:
ByteCode-MSIL.Trojan.Zilla
Create hunting rule
Status:
Malicious
First seen:
2022-06-24 00:42:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rg3422zogpc4pvbdzcauwvxhu6xppkzqmtb73t2pi4zlzy4dpm2a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:pu8h loader rat spyware stealer suricata
Link:
https://tria.ge/reports/220624-jeng5sdeg8/
Behaviour
Modifies Internet Explorer settings
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
Reads user/profile data of web browsers
Uses the VBS compiler for execution
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
19bbd118014060ce2ea36bc5e81648567e80938474e0a0b83c8e9d6939b0b0fe
MD5 hash:
3c7defef140f78a190be1d3a73d2658b
SHA1 hash:
06452710a7a7b19ad81455cd9da6eb9e5635f28d
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
XLoader
Create hunting rule
Link:
https://www.unpac.me/results/7fb3bf63-9c13-4ea1-89ab-2bab339a8df0/
Parent samples :
7ee8ca05500f7d2caa6053aff0486736e850f28861dcff8aaa82e3fc30a5d857
89b7cd6b2e33c5c7d423c8814b56e7a7aef7ab3064c3fdcf4f4732bce3837b34
SH256 hash:
9bf9a160bb86700038e8c58228263e37075da7bd7853d407208b469ab1e8e858
MD5 hash:
5a2d0515e2968b442417cb68e5b90a0c
SHA1 hash:
6e5d4d1b2902e90867ac7913b362b53004e51c37
Link:
https://www.unpac.me/results/7fb3bf63-9c13-4ea1-89ab-2bab339a8df0/
SH256 hash:
89b7cd6b2e33c5c7d423c8814b56e7a7aef7ab3064c3fdcf4f4732bce3837b34
MD5 hash:
594eb16eb878818396471fc8531d5cab
SHA1 hash:
2e13a0e4094aadcf2facb95ecc738e5c610bf2aa
Link:
https://www.unpac.me/results/7fb3bf63-9c13-4ea1-89ab-2bab339a8df0/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/89b7cd6b2e33/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/89b7cd6b2e33c5c7d423c8814b56e7a7aef7ab3064c3fdcf4f4732bce3837b34

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
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe 89b7cd6b2e33c5c7d423c8814b56e7a7aef7ab3064c3fdcf4f4732bce3837b34

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/282921/
  
URLhaus
https://urlhaus.abuse.ch/url/2248749/
  
Delivery method
Distributed via web download

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