MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f88c6f7beb3b21dc8b8a53244aa7bbf000981929b5bb30db3acec409b6cb486a. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f88c6f7beb3b21dc8b8a53244aa7bbf000981929b5bb30db3acec409b6cb486a
SHA3-384 hash: 12b9b0ff8bd1bbb5323a0cf2b1851fe892b141af8e9f2b6521919bfd165958121ea3d0c0118eea073bdf662f35bafb8d
SHA1 hash: 27c9809713c2904b89e60b5d27ff7fff6337b835
MD5 hash: a9755115a8f32aa97af3e472909d17f8
humanhash: fourteen-spaghetti-fourteen-iowa
File name:big.exee
Download: download sample
Signature Formbook
Create hunting rule
File size:904'704 bytes
First seen:2022-06-24 08:36:06 UTC
Last seen:2022-06-24 09:57:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:Bi1YivMYiOw9F0/w9FEY9lw9FDY6wEZa2hOuHbLoaWXYiOw9F0MYiDw9F0MYiOwQ:gFvCOGG/GDlGhSEUqkaaOGGCDGGCOGG
TLSH T16115021175C0F75BC36F0C7B45A21100523895A73E97DE9F6CC262EE6A0E3CA8646DAF
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 :
197
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/282961/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62b577b01fcdba4e1a5156e9/reports/3ad86b45-3569-4a08-8188-b603846183e5/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/a7cbf60b-bc3d-4025-8ca5-7587a6937c0a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1019231
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in 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 submitted file
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
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 651729 Sample: big.exee Startdate: 24/06/2022 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus detection for URL or domain 2->40 42 8 other signatures 2->42 10 big.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\Local\...\big.exe.log, ASCII 10->28 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 54 Injects a PE file into a foreign processes 10->54 14 big.exe 10->14         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.allegraronda.com 160.124.179.211, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK South Africa 17->30 32 www.demo.gmbh 217.26.48.101, 49772, 80 HOSTPOINT-ASCH Switzerland 17->32 34 2 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 svchost.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f88c6f7beb3b21dc8b8a53244aa7bbf000981929b5bb30db3acec409b6cb486a/
Threat name:
ByteCode-MSIL.Trojan.Zilla
Create hunting rule
Status:
Malicious
First seen:
2022-06-24 08:37:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
52
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7cgg667lhmq5zc4kkmsevj536aajqgjjww5tbwz2z3catnwljbva._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:ta3t loader persistence rat spyware stealer suricata
Link:
https://tria.ge/reports/220624-kkwalsbbck/
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
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)
Unpacked files
SH256 hash:
91161c1bb992a21c104463e14a8975ddd96fae98236ce3effab9d9637de720b6
MD5 hash:
e14150de15c5d7030760f812214bf4b1
SHA1 hash:
47d6f6174a99527bbfad1e9b023f014fbdb33bde
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
XLoader
Create hunting rule
Link:
https://www.unpac.me/results/82a52f7c-4e55-4aeb-91ce-97eabab9cc5f/
Parent samples :
f04f07bbeffe4e7ea71dabc192759db670f2407c8d46fd7f40ac91020f7161dc
24760feea3c8f265f0af7e459844b8b793b6f572b890ce692a47cb6d6141a50a
cd055a7b832bc32db20e93992cbc4df3698599747d51ebbb091af91156f82dfb
cf6f665f23b44c9c347fc9d3fbb3f6b3ccf3ab82366959437213ad77346e757d
f88c6f7beb3b21dc8b8a53244aa7bbf000981929b5bb30db3acec409b6cb486a
SH256 hash:
d31534a58ff84a1fcc9fd04c4670458488bc5ff747f716e76df1882a61f7e5b0
MD5 hash:
d2df9fe10e92e1cf6bc5ab7977a0de82
SHA1 hash:
f58b29a0544b9448a6a6806698b685fecb79f4b7
Link:
https://www.unpac.me/results/82a52f7c-4e55-4aeb-91ce-97eabab9cc5f/
SH256 hash:
b9bb674f9e154fe8d22f408b534c6b820792434d6f308cef60f0eafea640fcc2
MD5 hash:
e2e34e25b6e0f4f3c8b512d6293d03ce
SHA1 hash:
b63e5580f1f6addd44e872f2865528bc8c832bed
Link:
https://www.unpac.me/results/82a52f7c-4e55-4aeb-91ce-97eabab9cc5f/
SH256 hash:
880c9ff80de33cde042ab26d75677dab18fdc7695908d615c44efa8b5d8e088a
MD5 hash:
07e1e5baea35d75e784cce3b991a5fdc
SHA1 hash:
2f5cd9ad4acec13ddb49f9d69093f9fe475342c2
Link:
https://www.unpac.me/results/82a52f7c-4e55-4aeb-91ce-97eabab9cc5f/
SH256 hash:
6ddfc923a106aff5bf2b6b75fc31f87b3c234acb4da6c5b7d594c0fd994fc313
MD5 hash:
76e2299aa9c6e95305f2e8e7d5d2233f
SHA1 hash:
251e172a998513e6e8d0c6f1b7f0d31fb3ecd945
Link:
https://www.unpac.me/results/82a52f7c-4e55-4aeb-91ce-97eabab9cc5f/
SH256 hash:
f88c6f7beb3b21dc8b8a53244aa7bbf000981929b5bb30db3acec409b6cb486a
MD5 hash:
a9755115a8f32aa97af3e472909d17f8
SHA1 hash:
27c9809713c2904b89e60b5d27ff7fff6337b835
Link:
https://www.unpac.me/results/82a52f7c-4e55-4aeb-91ce-97eabab9cc5f/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f88c6f7beb3b/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/f88c6f7beb3b21dc8b8a53244aa7bbf000981929b5bb30db3acec409b6cb486a

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
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 f88c6f7beb3b21dc8b8a53244aa7bbf000981929b5bb30db3acec409b6cb486a

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/282961/
  
URLhaus
https://urlhaus.abuse.ch/url/2248774/
  
Delivery method
Distributed via web download

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