MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a3a3e10ea96961c3e5cc533be186a83f18fea89a5beb3074b04f4ee402c5f85f. 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: 17


Intelligence 17 IOCs YARA 1 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a3a3e10ea96961c3e5cc533be186a83f18fea89a5beb3074b04f4ee402c5f85f
SHA3-384 hash: 9abc05a2b97f99a693993b80a99081f577bd907ac8dc4215052f977d2bb1cc6e3ea399c323984c98623e98e6a4bd5064
SHA1 hash: 227b91976de5957bcefb8f48a627af1b3eb445f8
MD5 hash: 8ccf35c53de65bbb15afc6cd06c00b4d
humanhash: mississippi-pluto-cardinal-double
File name:8ccf35c53de65bbb15afc6cd06c00b4d
Download: download sample
Signature Formbook
Create hunting rule
File size:428'441 bytes
First seen:2023-01-12 16:24:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:oYa6D9US2OF91XSeI2TbdiucvZOiBPFwvxTWm57xCWCGWY:oY99US2OF3XSeIGJbcxdw4+xlC0
TLSH T13A949D3D6991804FC0226B71542ABF3A06204DFCBD75912FFE683589EBB27994876337
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d4baeccccce8b2cc (1 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
170
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
RFQ SO-120123-Kliotex- PO 120123.doc
Verdict:
Malicious activity
Analysis date:
2023-01-12 15:29:39 UTC
Tags:
exploit cve-2017-11882 loader formbook xloader trojan stealer
Link:
https://app.any.run/tasks/4b2c5ba2-1621-44d3-b094-9544bf5b015c

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/352373/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.64936863.15797.18125.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Reading critical registry keys
Sending a custom TCP request
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63c03463d53d23fd7ca48a7e/reports/642bae07-a9f5-4df5-9f68-0d2bac2954ae/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/5279d6b2-0314-4ed9-987c-539ccd1ff6b0
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1150532
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 783262 Sample: g67JoR72Ib.exe Startdate: 12/01/2023 Architecture: WINDOWS Score: 100 36 www.linnus.shop 2->36 38 linnus.shop 2->38 54 Malicious sample detected (through community Yara rule) 2->54 56 Antivirus detection for URL or domain 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 3 other signatures 2->60 12 g67JoR72Ib.exe 19 2->12         started        signatures3 process4 file5 34 C:\Users\user\AppData\Local\Temp\fnwnbd.exe, PE32 12->34 dropped 15 fnwnbd.exe 12->15         started        process6 signatures7 72 Multi AV Scanner detection for dropped file 15->72 74 Detected unpacking (changes PE section rights) 15->74 76 Maps a DLL or memory area into another process 15->76 78 2 other signatures 15->78 18 fnwnbd.exe 15->18         started        process8 signatures9 46 Modifies the context of a thread in another process (thread injection) 18->46 48 Maps a DLL or memory area into another process 18->48 50 Sample uses process hollowing technique 18->50 52 Queues an APC in another process (thread injection) 18->52 21 explorer.exe 2 6 18->21 injected process10 dnsIp11 40 www.cantonbourbonroom.com 162.214.129.144, 49697, 80 UNIFIEDLAYER-AS-1US United States 21->40 42 hatmam.com 162.241.24.59, 49698, 80 UNIFIEDLAYER-AS-1US United States 21->42 44 2 other IPs or domains 21->44 62 System process connects to network (likely due to code injection or exploit) 21->62 64 Performs DNS queries to domains with low reputation 21->64 25 systray.exe 21->25         started        28 autofmt.exe 21->28         started        signatures12 process13 signatures14 66 Modifies the context of a thread in another process (thread injection) 25->66 68 Maps a DLL or memory area into another process 25->68 70 Tries to detect virtualization through RDTSC time measurements 25->70 30 cmd.exe 1 25->30         started        process15 process16 32 conhost.exe 30->32         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a3a3e10ea96961c3e5cc533be186a83f18fea89a5beb3074b04f4ee402c5f85f/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2023-01-12 09:04:59 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uor6cdvjnfq4hzomkm56dbvih4mp5ke2lpvta5fqj5hoiawf7bpq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:nes8 rat spyware stealer trojan
Link:
https://tria.ge/reports/230112-twzlvagf83/
Behaviour
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
Loads dropped DLL
Executes dropped EXE
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0a61b6e2-1336-4049-9d34-cb846d40ad56
Unpacked files
SH256 hash:
efe596c5110ab6eb3462f9e6a4b2f20ae0862a13131fbeca3af10583e253d4c2
MD5 hash:
6a4318bea5a6cbc9faa65f588c79f87b
SHA1 hash:
3e0d54b41f3c5fcc8e0b2f95d4608857247aaa66
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/471087fc-1a82-464c-8c71-5112ce63c5a7/
Parent samples :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 hash:
db204961eca6f9966d647ea387b405a25bffea9990ffe4c97212764f1278f44b
MD5 hash:
fc298858c5d164a6b07ab0c9d3433863
SHA1 hash:
1902bdb08829a60a4aa205f8f3f742ac65fd4bd7
Link:
https://www.unpac.me/results/471087fc-1a82-464c-8c71-5112ce63c5a7/
SH256 hash:
a3a3e10ea96961c3e5cc533be186a83f18fea89a5beb3074b04f4ee402c5f85f
MD5 hash:
8ccf35c53de65bbb15afc6cd06c00b4d
SHA1 hash:
227b91976de5957bcefb8f48a627af1b3eb445f8
Link:
https://www.unpac.me/results/471087fc-1a82-464c-8c71-5112ce63c5a7/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a3a3e10ea969/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/a3a3e10ea96961c3e5cc533be186a83f18fea89a5beb3074b04f4ee402c5f85f

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin

File information

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

Web download

Formbook

Executable exe a3a3e10ea96961c3e5cc533be186a83f18fea89a5beb3074b04f4ee402c5f85f

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2505695/
Cape
Cape
https://www.capesandbox.com/analysis/352373/

Comments


Avatar
zbet commented on 2023-01-12 16:24:27 UTC

url : hxxp://rusprint.s3.eu-north-1.amazonaws.com/water.exe