MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9c410e6c86baf7f355d2045a0fd5e3080f3a2ca9afbd319bd1c42485c22b9a8. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments 1
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SHA256 hash: b9c410e6c86baf7f355d2045a0fd5e3080f3a2ca9afbd319bd1c42485c22b9a8
SHA3-384 hash: 519e7e92a0071e3ab4ddfbd95579cd93bb843fe6f79f8a2a6a0786f4c716756ea16df72b8ecb3ecc8b545978c2ab695c
SHA1 hash: 81cb26783bbebc09245bd38546724ffd4845a264
MD5 hash: a9c17b30c3c8d1ab73368929ce6a9ccd
humanhash: wisconsin-emma-pizza-shade
File name:a9c17b30c3c8d1ab73368929ce6a9ccd
Download: download sample
Signature Formbook
Create hunting rule
File size:1'219'584 bytes
First seen:2021-08-17 14:07:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7b3d39f86bce9836a8fcdf7d5c6f7f87 (2 x RemcosRAT, 1 x AveMariaRAT, 1 x Formbook)
ssdeep 24576:0h4WI1DOj6P0hFORupCAzQUedKPIddHlen0F:8ej+XQUeET0
Threatray 7'093 similar samples on MalwareBazaar
TLSH T168458D0F6F928E33C8260A378F5AA8999419BE613D21724F63D9FF9F16378D1391540B
dhash icon 12093cbab83c0912 (4 x RemcosRAT, 1 x AveMariaRAT, 1 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
160
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Transfer-form-$157,890.xlsx
Verdict:
Malicious activity
Analysis date:
2021-08-17 13:35:52 UTC
Tags:
encrypted opendir exploit CVE-2017-11882
Link:
https://app.any.run/tasks/720292ce-40eb-43d5-803a-44849a83da65

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/180065/
Detection(s):
SecuriteInfo.com.W32.Delf.AMC.6669.30062.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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 cmd.exe command interpreter
Launching a process
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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:
REMCOS
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4d4a5cbe-4f9a-4217-ab7f-b5de561ad716
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/834449
Signature
Allocates memory in foreign processes
Creates a thread in another existing process (thread injection)
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 dropped file
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
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: 466914 Sample: EgiF4Am00T Startdate: 17/08/2021 Architecture: WINDOWS Score: 100 60 www.mobiessence.com 2->60 62 www.geekotronic.com 2->62 102 Malicious sample detected (through community Yara rule) 2->102 104 Multi AV Scanner detection for submitted file 2->104 106 Yara detected FormBook 2->106 108 2 other signatures 2->108 11 EgiF4Am00T.exe 1 22 2->11         started        signatures3 process4 dnsIp5 80 sn-files.fe.1drv.com 11->80 82 onedrive.live.com 11->82 84 dkbp0q.sn.files.1drv.com 11->84 58 C:\Users\Public\Libraries\...behaviorgraphvxbhgp.exe, PE32 11->58 dropped 128 Writes to foreign memory regions 11->128 130 Allocates memory in foreign processes 11->130 132 Creates a thread in another existing process (thread injection) 11->132 134 Injects a PE file into a foreign processes 11->134 16 logagent.exe 11->16         started        19 cmd.exe 1 11->19         started        21 cmd.exe 1 11->21         started        file6 signatures7 process8 signatures9 86 Modifies the context of a thread in another process (thread injection) 16->86 88 Maps a DLL or memory area into another process 16->88 90 Sample uses process hollowing technique 16->90 92 2 other signatures 16->92 23 explorer.exe 4 2 16->23 injected 27 reg.exe 1 19->27         started        29 conhost.exe 19->29         started        31 cmd.exe 1 21->31         started        33 conhost.exe 21->33         started        process10 dnsIp11 76 cannamalism.com 34.102.136.180, 49748, 80 GOOGLEUS United States 23->76 78 www.cannamalism.com 23->78 126 System process connects to network (likely due to code injection or exploit) 23->126 35 Gvxbhgp.exe 15 23->35         started        39 Gvxbhgp.exe 17 23->39         started        41 wlanext.exe 23->41         started        43 colorcpl.exe 23->43         started        45 conhost.exe 27->45         started        47 conhost.exe 31->47         started        signatures12 process13 dnsIp14 64 sn-files.fe.1drv.com 35->64 66 onedrive.live.com 35->66 68 dkbp0q.sn.files.1drv.com 35->68 110 Multi AV Scanner detection for dropped file 35->110 112 Writes to foreign memory regions 35->112 114 Allocates memory in foreign processes 35->114 49 ieinstal.exe 35->49         started        70 192.168.2.1 unknown unknown 39->70 72 sn-files.fe.1drv.com 39->72 74 2 other IPs or domains 39->74 116 Creates a thread in another existing process (thread injection) 39->116 118 Injects a PE file into a foreign processes 39->118 52 DpiScaling.exe 39->52         started        120 Modifies the context of a thread in another process (thread injection) 41->120 122 Maps a DLL or memory area into another process 41->122 124 Tries to detect virtualization through RDTSC time measurements 41->124 54 cmd.exe 1 41->54         started        signatures15 process16 signatures17 94 Modifies the context of a thread in another process (thread injection) 49->94 96 Maps a DLL or memory area into another process 49->96 98 Sample uses process hollowing technique 49->98 100 Tries to detect virtualization through RDTSC time measurements 52->100 56 conhost.exe 54->56         started        process18
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b9c410e6c86baf7f355d2045a0fd5e3080f3a2ca9afbd319bd1c42485c22b9a8/
Threat name:
Win32.Trojan.Sabsik
Create hunting rule
Status:
Malicious
First seen:
2021-08-17 13:39:07 UTC
AV detection:
16 of 28 (57.14%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
22bd5ba035c9dcdda222f812537d8b49241b50c55042fd3b902ca8b36d17a398
Formbook
6b1c4ecf03e71ee2c00deb9b82e805b16adaf5e01691f7d3fd1a972087c7481a
Formbook
7f7af3d03481bb68e11a68e958ce6d8e96701a053eaa458e7010a4a85643cad3
Formbook
c75eff07a3519dee7ab981166c1b6ff851d1e826e3ef5f0e36250b5983e3095c
Formbook
d30f6c3814efbb4b2e5d9ae0f5d09a4a7ba04cc8a3456590d64cf9bfed279901
Formbook
e6bd5f8475731bcca5f6b74327a68ee4b7fa5b0662521feff1d92424da149151
Formbook
+ 7'083 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/210817-nwp8m5t8kx/
Behaviour
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 UnmapMainImage
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:
83be54a46fe8e12ec57c214ad250621d3a2830b8b2efcc13f30e6d523f0fea68
MD5 hash:
755fc419ecbfb445be46ff9969bbdb1c
SHA1 hash:
9955c8db8f2fd57904320cb655e34fb683945ac3
Link:
https://www.unpac.me/results/4b823368-210b-4690-a2c8-c547002eada2/
SH256 hash:
795b2b5d6668147d7924ac96f90741ddc2a2b5003f455fb842b613a286fbf8fc
MD5 hash:
53011b69a7231aea23d66805a681144b
SHA1 hash:
e3d0d157e763c865e79ccc5bedc2fd5fd90413f7
Link:
https://www.unpac.me/results/4b823368-210b-4690-a2c8-c547002eada2/
SH256 hash:
b9c410e6c86baf7f355d2045a0fd5e3080f3a2ca9afbd319bd1c42485c22b9a8
MD5 hash:
a9c17b30c3c8d1ab73368929ce6a9ccd
SHA1 hash:
81cb26783bbebc09245bd38546724ffd4845a264
Link:
https://www.unpac.me/results/4b823368-210b-4690-a2c8-c547002eada2/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b9c410e6c86b/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/b9c410e6c86baf7f355d2045a0fd5e3080f3a2ca9afbd319bd1c42485c22b9a8

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_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
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Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Web download

Formbook

Executable exe b9c410e6c86baf7f355d2045a0fd5e3080f3a2ca9afbd319bd1c42485c22b9a8

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1541796/
Cape
Cape
https://www.capesandbox.com/analysis/180065/

Comments


Avatar
zbet commented on 2021-08-17 14:07:38 UTC

url : hxxp://75.127.1.239/vnc/vbc.exe