MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 be6c146acab77dfb4116c0805a1244c79a5da7393ce8ee582f59ae8c1773e406. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: be6c146acab77dfb4116c0805a1244c79a5da7393ce8ee582f59ae8c1773e406
SHA3-384 hash: 39527dc171dc337718dcb1d74f23d20ee773d3aa91d8cbcb32a9b66369c64da8668014f1f3bfa4d0e0146160bfd8ff05
SHA1 hash: 97ce48bc5177efca1214d82aec85049373fe4671
MD5 hash: 442d2d8a7820a1c0c0ba418476d67fb0
humanhash: grey-tennis-eight-spring
File name:442d2d8a7820a1c0c0ba418476d67fb0
Download: download sample
Signature Formbook
Create hunting rule
File size:708'608 bytes
First seen:2021-08-06 13:54:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash a09d64195bff556eb90ba4781b170ac7 (4 x RemcosRAT, 2 x Formbook)
ssdeep 12288:NlyPhGe3nf8jHmf/3AwhgFn33DdzQwcApa56Q0uGPwNfXA:NAPbaHLwh2nBZ6ouRA
Threatray 6'643 similar samples on MalwareBazaar
TLSH T18CE49E92F2A10873D6626A3DCC0FE7BC9827BE512D2576452BFC3D488F79741362618E
dhash icon 616110152b2b5130 (12 x RemcosRAT, 5 x Formbook, 4 x BitRAT)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
392
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
FX-Transfer-Form.xlsx
Verdict:
Malicious activity
Analysis date:
2021-08-06 13:30:24 UTC
Tags:
encrypted exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/c1146056-dbf3-41d1-95f3-9c838258f8c8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/177045/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware2.19282.1328.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Deleting a recently created file
Running batch commands
Creating a process with a hidden window
Launching a process
Launching cmd.exe command interpreter
Sending a UDP request
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Unauthorized injection to a system process
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/26732537-6902-4407-be56-00f8fb7bb9ad
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/828333
Signature
Allocates memory in foreign processes
Creates a thread in another existing process (thread injection)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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
Sigma detected: Execution from Suspicious Folder
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 460765 Sample: yJHdalSNbm Startdate: 06/08/2021 Architecture: WINDOWS Score: 100 62 www.miamiqueensdress.com 2->62 64 www.genesysshop.com 2->64 66 3 other IPs or domains 2->66 102 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->102 104 Multi AV Scanner detection for submitted file 2->104 106 Machine Learning detection for sample 2->106 108 Sigma detected: Execution from Suspicious Folder 2->108 11 yJHdalSNbm.exe 1 24 2->11         started        16 Fuvajut.exe 16 2->16         started        signatures3 process4 dnsIp5 74 sn-files.fe.1drv.com 11->74 76 pxrvua.sn.files.1drv.com 11->76 78 onedrive.live.com 11->78 60 C:\Users\Public\Libraries\...\Fuvajut.exe, PE32 11->60 dropped 134 Writes to foreign memory regions 11->134 136 Allocates memory in foreign processes 11->136 138 Creates a thread in another existing process (thread injection) 11->138 18 secinit.exe 11->18         started        21 cmd.exe 1 11->21         started        23 cmd.exe 1 11->23         started        80 sn-files.fe.1drv.com 16->80 82 pxrvua.sn.files.1drv.com 16->82 84 onedrive.live.com 16->84 140 Machine Learning detection for dropped file 16->140 142 Injects a PE file into a foreign processes 16->142 25 DpiScaling.exe 16->25         started        file6 signatures7 process8 signatures9 92 Modifies the context of a thread in another process (thread injection) 18->92 94 Maps a DLL or memory area into another process 18->94 96 Sample uses process hollowing technique 18->96 98 Queues an APC in another process (thread injection) 18->98 27 explorer.exe 18->27 injected 31 reg.exe 1 21->31         started        33 conhost.exe 21->33         started        35 cmd.exe 1 23->35         started        37 conhost.exe 23->37         started        100 Tries to detect virtualization through RDTSC time measurements 25->100 process10 dnsIp11 86 www.amazebrowser.com 185.107.56.197, 49744, 80 NFORCENL Netherlands 27->86 88 www.at-academy.com 64.190.62.111, 49745, 80 NBS11696US United States 27->88 90 www.geekotronic.com 27->90 132 System process connects to network (likely due to code injection or exploit) 27->132 39 Fuvajut.exe 16 27->39         started        43 cmmon32.exe 27->43         started        45 cmstp.exe 27->45         started        47 cmmon32.exe 27->47         started        49 conhost.exe 31->49         started        51 conhost.exe 35->51         started        signatures12 process13 dnsIp14 68 sn-files.fe.1drv.com 39->68 70 pxrvua.sn.files.1drv.com 39->70 72 onedrive.live.com 39->72 118 Writes to foreign memory regions 39->118 120 Allocates memory in foreign processes 39->120 122 Creates a thread in another existing process (thread injection) 39->122 124 Injects a PE file into a foreign processes 39->124 53 logagent.exe 39->53         started        126 Modifies the context of a thread in another process (thread injection) 43->126 128 Maps a DLL or memory area into another process 43->128 130 Tries to detect virtualization through RDTSC time measurements 43->130 56 cmd.exe 1 43->56         started        signatures15 process16 signatures17 110 Modifies the context of a thread in another process (thread injection) 53->110 112 Maps a DLL or memory area into another process 53->112 114 Sample uses process hollowing technique 53->114 116 Tries to detect virtualization through RDTSC time measurements 53->116 58 conhost.exe 56->58         started        process18
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/be6c146acab77dfb4116c0805a1244c79a5da7393ce8ee582f59ae8c1773e406/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-08-06 13:36:50 UTC
AV detection:
13 of 27 (48.15%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xzwbi2wkw567wqiwycafuesey6nf3jzzhtuo4wbplgxiyf3t4qda._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
22bd5ba035c9dcdda222f812537d8b49241b50c55042fd3b902ca8b36d17a398
Formbook
236348545989c7d1816067f0e7bf78c80d4782e2ac28ab6d9ddbb1a2d4f71cc4
Formbook
760b2466db1fdc2d2c1651a730cfd6c14bfbcbd8f69eeb56ec8426d46784f4b3
Formbook
8395de2fb2940f93de9e2058bae551d3631bb5e93b23b396c5042532f0d2de58
Formbook
b875a5e660e0e64042fc182c3739d6916568132cf1cc2f8919abe516ac4cf534
Formbook
e6bd5f8475731bcca5f6b74327a68ee4b7fa5b0662521feff1d92424da149151
Formbook
+ 6'633 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:6mam loader persistence rat suricata
Link:
https://tria.ge/reports/210806-5mahlv786e/
Behaviour
Gathers network information
Modifies registry key
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
Adds Run key to start application
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.mobiessence.com/6mam/
Unpacked files
SH256 hash:
795b2b5d6668147d7924ac96f90741ddc2a2b5003f455fb842b613a286fbf8fc
MD5 hash:
53011b69a7231aea23d66805a681144b
SHA1 hash:
e3d0d157e763c865e79ccc5bedc2fd5fd90413f7
Link:
https://www.unpac.me/results/267562b0-e144-4cfb-82db-35f589f4ffe9/
SH256 hash:
be6c146acab77dfb4116c0805a1244c79a5da7393ce8ee582f59ae8c1773e406
MD5 hash:
442d2d8a7820a1c0c0ba418476d67fb0
SHA1 hash:
97ce48bc5177efca1214d82aec85049373fe4671
Link:
https://www.unpac.me/results/267562b0-e144-4cfb-82db-35f589f4ffe9/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/be6c146acab7/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/be6c146acab77dfb4116c0805a1244c79a5da7393ce8ee582f59ae8c1773e406

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EnvVarScheduledTasks
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC (ab)using Environment Variables in Scheduled Tasks
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Web download

Formbook

Executable exe be6c146acab77dfb4116c0805a1244c79a5da7393ce8ee582f59ae8c1773e406

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/177045/
  
URLhaus
https://urlhaus.abuse.ch/url/1511245/

Comments


Avatar
zbet commented on 2021-08-06 13:54:37 UTC

url : hxxp://198.144.176.246/drop/dro/vbc.exe