MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 18fffdf046406f3e77b5710a25907406275df9936a76b32977e0956b20d48612. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 18fffdf046406f3e77b5710a25907406275df9936a76b32977e0956b20d48612
SHA3-384 hash: 278954da0885d489e29a16ef0363bf51f75c3ebefe7b703d8d28f91f2eeeeab611569e18b5ad8a3920346584ad2a881a
SHA1 hash: ac4642792c249bda0df466449b490d138ef6a6c6
MD5 hash: bed8f2717f27b9d8b64c6294839dea9a
humanhash: rugby-low-music-arkansas
File name:bed8f2717f27b9d8b64c6294839dea9a
Download: download sample
Signature Formbook
Create hunting rule
File size:683'568 bytes
First seen:2022-05-25 09:03:30 UTC
Last seen:2022-05-25 09:49:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'656 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:uJEqiRxnR449Jk8boeVVWKUBmcFrw7HfIwRN71jdmESajnWjsFCk2JKo:+UoOD51jnSiSh
Threatray 15'967 similar samples on MalwareBazaar
TLSH T16EE4CA2A38BA100DB272AD5C6BBCB175911EF7F226365CBB0DF7054A11129F0CB9D627
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
506
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
bed8f2717f27b9d8b64c6294839dea9a
Verdict:
Malicious activity
Analysis date:
2022-05-25 09:36:50 UTC
Tags:
formbook
Link:
https://app.any.run/tasks/9c74eed8-8aa7-437b-b2c4-f4bd20b27a52

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/274444/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
aspnet_compiler.exe control.exe formbook obfuscated overlay packed packed replace.exe
Link:
https://www.filescan.io/uploads/628df1150be8a16da4ea64dc/reports/696cf368-6233-4d4b-9d94-dab379b66386/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/201cf825-ffcf-4f5b-adab-14c0124bdc9f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1001418
Signature
.NET source code contains very large strings
.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)
Found malware configuration
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 domain / URL
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: 633916 Sample: zjWQY3wxxX Startdate: 25/05/2022 Architecture: WINDOWS Score: 100 31 www.tootko.com 2->31 33 www.mentalnayaarifmetika.online 2->33 35 7 other IPs or domains 2->35 43 Snort IDS alert for network traffic 2->43 45 Multi AV Scanner detection for domain / URL 2->45 47 Found malware configuration 2->47 49 9 other signatures 2->49 11 zjWQY3wxxX.exe 1 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\zjWQY3wxxX.exe.log, ASCII 11->29 dropped 61 Writes to foreign memory regions 11->61 63 Allocates memory in foreign processes 11->63 65 Injects a PE file into a foreign processes 11->65 67 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->67 15 aspnet_compiler.exe 11->15         started        signatures6 process7 signatures8 69 Modifies the context of a thread in another process (thread injection) 15->69 71 Maps a DLL or memory area into another process 15->71 73 Sample uses process hollowing technique 15->73 75 2 other signatures 15->75 18 explorer.exe 15->18 injected process9 dnsIp10 37 www.muktobangla.xyz 18->37 39 american-atlantic.net 15.197.142.173, 49814, 80 TANDEMUS United States 18->39 41 12 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 53 Performs DNS queries to domains with low reputation 18->53 22 wlanext.exe 18->22         started        signatures11 process12 signatures13 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 59 Tries to detect virtualization through RDTSC time measurements 22->59 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/18fffdf046406f3e77b5710a25907406275df9936a76b32977e0956b20d48612/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-05-25 09:28:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dd7734cgibxt455voefcleduaytv36mtnj3lgklx4ckwwiguqyja._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
4d8cc87942499042195cec4fdb2fc5869d4bf98a1d827fd30fb74e82cf0fdc0f
Formbook
75966b70eb1553a97eca9ab884133daefbfb3c1d287905003f72158841c1d14d
Formbook
a086b9d9deac0634ed22d5556aeb9616922d530ba2651c94bff0c87fbc0a47ef
Formbook
a54747eaf6d63ce39338d704a101d9a62eec245451ba07549fb98adb7fdb415f
Formbook
da988ba6c1b8b556831ea02129681d06cbf19c252bd744b83162cdb43343aceb
Formbook
+ 15'957 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:ocgr loader rat suricata
Link:
https://tria.ge/reports/220525-k1kttaddbn/
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
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
7d8cfd4eab4aa77fe66110e0832f4074973bd0145314cd89111d2d1bdd3688fc
MD5 hash:
2b79011633ef10f823aa3a3166eb0960
SHA1 hash:
a1e614ba1b7b8b5e04fcd5f0cb263105cb20a64e
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/3bbdb0ba-7f77-4bc1-8cf9-483d475a845a/
Parent samples :
75966b70eb1553a97eca9ab884133daefbfb3c1d287905003f72158841c1d14d
a086b9d9deac0634ed22d5556aeb9616922d530ba2651c94bff0c87fbc0a47ef
da988ba6c1b8b556831ea02129681d06cbf19c252bd744b83162cdb43343aceb
8ecc7ecdce9763d43b61041cbc6c2151fc8583a01af584f7f5fe0999d127aaf6
eb26b47f9aa3033edbc2d791075f85fcc7894cd7dc3bbaf31974024b9695a52f
96e23a6b86ee1295e6586b402f1536d07cccdb22ddb91c153212169e195e5b15
a54747eaf6d63ce39338d704a101d9a62eec245451ba07549fb98adb7fdb415f
5ee5173078ed5928aae854a2137e786ae69ed518f3c12f38b8d14b361d571612
755eba67df20bbbc9159b339eaaf96352b37db1009c493df1b352271a02d4d82
ee5274b2ec120d333922649e65d866c1119ab91943b732d9b856c369f165ff74
1f0b176179a3a4b934a0dbca9a6c9d332dc8333cff27c033cbdafa7ad5b0e256
b6fbd1e6813b72c6451666ad593bbf0eb259df260c3f3d2fcc962a5cb317c98b
18fffdf046406f3e77b5710a25907406275df9936a76b32977e0956b20d48612
7a34ef3a5f0d2db6674d93de3143d2469d8fa06bf450dc4c1609c97822e68f53
342968eb4b8de053a22beb6cfd0bf96bfa092eab26c351fc85f2c204f5869739
12fd506bab09a036a69b32535df6392d533a5ad8112c8b7bf287647f8c032bb0
SH256 hash:
71663f81a8bbeea9621af94aae8e6ce74825982575a4c6fa98b3147fd3f62b56
MD5 hash:
1bb74ecd2cfe230e1e0d7c4384bc00b9
SHA1 hash:
e4c64c7823f253b6a49d0b27ce2b5b1031597cb0
Link:
https://www.unpac.me/results/3bbdb0ba-7f77-4bc1-8cf9-483d475a845a/
SH256 hash:
71b46b3df0024d99150e9b7eebf72c824a5495a33e443fa75583d4ae3c9b2b32
MD5 hash:
10544bba16de0fafece340ee279d5f9b
SHA1 hash:
dd404e575b7afa84c293ba0f66d53e8fe90e9961
Link:
https://www.unpac.me/results/3bbdb0ba-7f77-4bc1-8cf9-483d475a845a/
SH256 hash:
18fffdf046406f3e77b5710a25907406275df9936a76b32977e0956b20d48612
MD5 hash:
bed8f2717f27b9d8b64c6294839dea9a
SHA1 hash:
ac4642792c249bda0df466449b490d138ef6a6c6
Link:
https://www.unpac.me/results/3bbdb0ba-7f77-4bc1-8cf9-483d475a845a/
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/18fffdf046406f3e77b5710a25907406275df9936a76b32977e0956b20d48612

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:INDICATOR_KB_CERT_65628c146ace93037fc58659f14bd35f
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
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 18fffdf046406f3e77b5710a25907406275df9936a76b32977e0956b20d48612

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2210537/
Cape
Cape
https://www.capesandbox.com/analysis/274444/

Comments


Avatar
zbet commented on 2022-05-25 09:03:37 UTC

url : hxxp://180.214.238.224/diskoncloud/vbc.exe