MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a92f8917b2e98217ede5359f7906dd0a60df26e087a1e1c33b81797a334fb448. 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 3 File information Comments
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SHA256 hash: a92f8917b2e98217ede5359f7906dd0a60df26e087a1e1c33b81797a334fb448
SHA3-384 hash: 75b89534b5e1d2e18762e3eaffc82206684b2752423055a968135eede49ee734abf916825ecd526cff495f1d0ff19e12
SHA1 hash: 5c37096275b5947dfd68ccacc92eec204fa73883
MD5 hash: 9e1bb80ff1f6f5181ed26c62ef3de29d
humanhash: summer-artist-louisiana-echo
File name:bis.exe.vir
Download: download sample
Signature Formbook
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File size:461'824 bytes
First seen:2022-06-21 10:19:57 UTC
Last seen:2022-06-21 10:50:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'473 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:FSFkeBazcQyiGNit5p0X3XXLhJcHMTdWKG5V6e7pe:fsiUI5p0X3reMTdcme7p
TLSH T136A4F102B9B95B1ADABA97F55B67008507B135AFA271F11C4CCB60EE2876F140DA0F73
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 KdssSupport
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
206
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/281903/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Stealer.23680.1327.13419.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62b19b6fe8129220e07c9211/reports/ff698c21-4d1a-4f71-9d92-24f870ab7c0a/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/57ffd19d-98f2-474c-b6ff-498243d11572
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1016985
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 649479 Sample: bis.exe.vir Startdate: 21/06/2022 Architecture: WINDOWS Score: 100 31 www.badeurlaub.xyz 2->31 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 11 bis.exe.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\bis.exe.exe.log, ASCII 11->29 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 59 Injects a PE file into a foreign processes 11->59 15 bis.exe.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.strictlynightowl.com 18->33 35 aqibioholdings.com 160.153.136.3, 49766, 80 GODADDY-AMSDE United States 18->35 37 5 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 49 Performs DNS queries to domains with low reputation 18->49 22 chkdsk.exe 18->22         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 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/a92f8917b2e98217ede5359f7906dd0a60df26e087a1e1c33b81797a334fb448/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-06-21 10:20:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vexysf5s5gbbp3pfgwpxsbw5bjqn6jxaq6q6dqz3qf4xum2pwrea._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:rb1k loader persistence rat spyware stealer suricata
Link:
https://tria.ge/reports/220621-mc4ccsfbf2/
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
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Deletes itself
Reads user/profile data of web browsers
Adds policy Run key to start application
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
0d70d125d622df6a63f0a6ccbb7121807aed67a880f64bd25a4b2a3c0e73f16f
MD5 hash:
ca9771ab9d9d21881f64d4540d6bb52c
SHA1 hash:
5ee4fd2fe61e9db757ab83b41ae33fde8d322742
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/fc267b21-c6f2-4dab-bc97-aa290b0cc9f6/
Parent samples :
a92f8917b2e98217ede5359f7906dd0a60df26e087a1e1c33b81797a334fb448
9fcf7e78f1d76764744e18fa7f159cc3f86058d889f9f044998de5a652fb6d22
SH256 hash:
6de8bc7d4844efdb55328126b632a374bee9aaf3073cf9ca5fe5fdf303106f8e
MD5 hash:
7ce2d10bd0f02667bc0e1343d9ffc1c1
SHA1 hash:
c3a5b4e5721085022eb7bf0008b7e449f9369fcf
Link:
https://www.unpac.me/results/fc267b21-c6f2-4dab-bc97-aa290b0cc9f6/
SH256 hash:
7f21546bf0a90d70b258ced4cf77712ebbcb7cf617d1e92cc907633207f9c4d8
MD5 hash:
3a0116108566d39319699659b1488cca
SHA1 hash:
bf3c2299f6f382b9208a238e070a05ede1b49734
Link:
https://www.unpac.me/results/fc267b21-c6f2-4dab-bc97-aa290b0cc9f6/
SH256 hash:
91e69a21bff23393a91931c1708c8e6882dc664e29d3d24b273ee29c62ee295b
MD5 hash:
0d2608b2e1a9947291b8f7be07d3c759
SHA1 hash:
2d5b65568feb78ec5e89021b50164cdf474b50b6
Link:
https://www.unpac.me/results/fc267b21-c6f2-4dab-bc97-aa290b0cc9f6/
SH256 hash:
a92f8917b2e98217ede5359f7906dd0a60df26e087a1e1c33b81797a334fb448
MD5 hash:
9e1bb80ff1f6f5181ed26c62ef3de29d
SHA1 hash:
5c37096275b5947dfd68ccacc92eec204fa73883
Link:
https://www.unpac.me/results/fc267b21-c6f2-4dab-bc97-aa290b0cc9f6/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a92f8917b2e9/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/a92f8917b2e98217ede5359f7906dd0a60df26e087a1e1c33b81797a334fb448

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:exploit_any_poppopret
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Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
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.

Web download

Formbook

Executable exe a92f8917b2e98217ede5359f7906dd0a60df26e087a1e1c33b81797a334fb448

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/281903/
  
URLhaus
https://urlhaus.abuse.ch/url/2246319/
  
Delivery method
Distributed via web download

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