MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a6c9f393ac5677eeccc1451ed5e1fd58c52771c06673781ce495eb956c7b867a. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
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SHA256 hash: a6c9f393ac5677eeccc1451ed5e1fd58c52771c06673781ce495eb956c7b867a
SHA3-384 hash: 08b15dd4f6efe4026f0bfc7b0883d1a3219d7f85792b591ab46b2fb5733dc692320d7f6e9fd961d41155b761a078c5ff
SHA1 hash: 0c8188ddb9af2fa1adef66f3a89c5ed974c08a81
MD5 hash: 4cc272de09cbccb14b4d2e0c174cfe4a
humanhash: juliet-sink-carpet-two
File name:vbc.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:615'424 bytes
First seen:2022-05-09 08:40:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:Ctt2L2IazLy64AIAHWLXEwDpEk0Ntu/xmb83Ggpd9WVNNMX8:Q24KL8HWDEeWpgZmb2pmQX8
Threatray 13'095 similar samples on MalwareBazaar
TLSH T166D41219B2FA5737E73A17F17240826013F2391DB171EB5A1C8935DF60A2FA22546FA3
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 pr0xylife
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
268
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
QUOTATION.xlsx
Verdict:
Malicious activity
Analysis date:
2022-05-09 08:46:50 UTC
Tags:
encrypted trojan opendir exploit CVE-2017-11882 loader formbook stealer
Link:
https://app.any.run/tasks/0a56f51b-0775-45b7-a506-82214ecd123c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a process with a hidden window
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/6278d3a04b517e213c2625ec/reports/b363e26a-dd7b-44c2-8bae-d405dd17e6ff/overview
Result
Verdict:
UNKNOWN
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/128cdff1-d7f2-4c22-a2fa-004f76712819
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/990050
Signature
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 dropped file
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 622547 Sample: vbc.exe Startdate: 09/05/2022 Architecture: WINDOWS Score: 100 39 www.linymar.xyz 2->39 41 www.cliffpassphotographyllc.com 2->41 43 cliffpassphotographyllc.com 2->43 51 Snort IDS alert for network traffic 2->51 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 9 other signatures 2->57 9 vbc.exe 7 2->9         started        signatures3 process4 file5 31 C:\Users\user\AppData\Roaming31uEppq.exe, PE32 9->31 dropped 33 C:\Users\user\...33uEppq.exe:Zone.Identifier, ASCII 9->33 dropped 35 C:\Users\user\AppData\Local\...\tmp9EA6.tmp, XML 9->35 dropped 37 C:\Users\user\AppData\Local\...\vbc.exe.log, ASCII 9->37 dropped 61 Uses schtasks.exe or at.exe to add and modify task schedules 9->61 63 Adds a directory exclusion to Windows Defender 9->63 65 Tries to detect virtualization through RDTSC time measurements 9->65 67 Injects a PE file into a foreign processes 9->67 13 vbc.exe 9->13         started        16 powershell.exe 25 9->16         started        18 schtasks.exe 1 9->18         started        signatures6 process7 signatures8 75 Modifies the context of a thread in another process (thread injection) 13->75 77 Maps a DLL or memory area into another process 13->77 79 Sample uses process hollowing technique 13->79 81 Queues an APC in another process (thread injection) 13->81 20 explorer.exe 13->20 injected 24 conhost.exe 16->24         started        26 conhost.exe 18->26         started        process9 dnsIp10 45 www.duowb.com 20->45 47 www.duowb.com 108.62.16.145, 49779, 80 LEASEWEB-USA-WDCUS United States 20->47 49 5 other IPs or domains 20->49 59 System process connects to network (likely due to code injection or exploit) 20->59 28 cscript.exe 20->28         started        signatures11 process12 signatures13 69 Modifies the context of a thread in another process (thread injection) 28->69 71 Maps a DLL or memory area into another process 28->71 73 Tries to detect virtualization through RDTSC time measurements 28->73
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a6c9f393ac5677eeccc1451ed5e1fd58c52771c06673781ce495eb956c7b867a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-05-09 08:30:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u3e7he5mkz365tgbiupnlyp5ldcso4oamzzxqhhesxvzk3d3qz5a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
06bdc739d26559129afbc157dff8ef0f616dbe885a6cd8a2f43b62efaf848bb9
Formbook
19a007d4980b99ea32ee2d9feb1c7479ee4c7b165b159fd4fbd33622b661009d
Formbook
28bae65cec413f6c0dcb0df2b34f0a9cb4a53ea246de0fff2baee4a98d8551d2
Formbook
33d9ff922b2b34291e7e84fee8cb11062f4e1eb56cff714fca88f8fa5b507c09
Formbook
3c57ec7ea03791fee9e9c337171a74420550482bb9c1e626aeb7e183bcf4b195
Formbook
513624286483a4e172511b412b82445a06eefc904d54de75da656ec1a6f8ae99
Formbook
95c6926c4af01e7a782b16967a66b3c349f24a6ab2393b1a20c47e28a1ad7249
Formbook
cb4f0f68dacf3b0deddf62a86e6d8d4963ba941f6aadf2f874ece8ee3768ab54
Formbook
e932695b2e7c04d9e57d7e5e0f3e928898621bcc8657c9d3203b9383c640a325
Formbook
+ 13'085 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:n6g4 loader rat suricata
Link:
https://tria.ge/reports/220509-klfasafffj/
Behaviour
Creates scheduled task(s)
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Uses the VBS compiler for execution
Blocklisted process makes network request
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
bcc1ff0c7bc4d1ffc8fede4bfc00ebdc331e53138e7d56a542a2a6a62ff037b6
MD5 hash:
db208c90e3042616c1553e7177404d84
SHA1 hash:
8bf78458fb2ae652936ca7bfaf62937faccdfa41
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/5bd0265e-e943-49ec-9c15-0daac2808d7e/
Parent samples :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 hash:
b5fdc1e5a8cdd947aaafe5c28c8d5a5929b51e5746b65746691cd10793f93fc1
MD5 hash:
0ebd9537b0336ce8a6ae7fb9eff51069
SHA1 hash:
d7e6a5110f3894c87fbeec1e67b918d8188b5d66
Link:
https://www.unpac.me/results/5bd0265e-e943-49ec-9c15-0daac2808d7e/
SH256 hash:
044e6e22943ac21887eaef4daf70bc43b8d7b54b7160ecc2e0b6ff77a6832a99
MD5 hash:
0512fe61b5e75a5aa25f0c17882292cd
SHA1 hash:
3b05ecfbb15a15fd46a9d9b588620454b6361745
Link:
https://www.unpac.me/results/5bd0265e-e943-49ec-9c15-0daac2808d7e/
SH256 hash:
e3247a826be985e3d9d3afe92656dbd1bc681084497887f157729feb242f5da7
MD5 hash:
60d9b74aff2d9573145b9a92489dd6b8
SHA1 hash:
32e103be52225f20872a1edfa0caa1e63105c8ae
Link:
https://www.unpac.me/results/5bd0265e-e943-49ec-9c15-0daac2808d7e/
SH256 hash:
a6c9f393ac5677eeccc1451ed5e1fd58c52771c06673781ce495eb956c7b867a
MD5 hash:
4cc272de09cbccb14b4d2e0c174cfe4a
SHA1 hash:
0c8188ddb9af2fa1adef66f3a89c5ed974c08a81
Link:
https://www.unpac.me/results/5bd0265e-e943-49ec-9c15-0daac2808d7e/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a6c9f393ac56/report/overview.html
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/a6c9f393ac5677eeccc1451ed5e1fd58c52771c06673781ce495eb956c7b867a

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 a6c9f393ac5677eeccc1451ed5e1fd58c52771c06673781ce495eb956c7b867a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2186953/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2186973/

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