MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 204831bda7d04f0905f7bf0c39e45b3772935726d8a436ee9703a19098b37e21. 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: 16


Intelligence 16 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 204831bda7d04f0905f7bf0c39e45b3772935726d8a436ee9703a19098b37e21
SHA3-384 hash: 60acfc7644b3ca9da5e74248a281f5ba8cc41333b6f4417865b1cd858e3c42b6e10b6b89c4aded5585bad3a7ca3d6a27
SHA1 hash: 06d35c8294b07fcfe90c4b0f09e85d653cce8cfd
MD5 hash: ef1a46a0c7f4b281a9b44fa2ac005716
humanhash: stream-virginia-don-speaker
File name:Packing list.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:397'915 bytes
First seen:2021-12-24 09:16:51 UTC
Last seen:2021-12-24 11:03:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:rGiVystAR2C/2CD902xl/W+8B9MP9eotiRFVSfvvaIaWo11SL0qpDFHgKb7a9:hL22AOkluj4PLtiRHSfvvgb6xgA7G
Threatray 12'735 similar samples on MalwareBazaar
TLSH T1B4842256B8D1A39BE412883515F7F73AE3BFE78440AB28671F3E5F2B189624B5009347
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
280
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Packing list.exe
Verdict:
Malicious activity
Analysis date:
2021-12-24 09:18:33 UTC
Tags:
installer trojan formbook stealer
Link:
https://app.any.run/tasks/7d9c5a03-7d17-4c05-900b-0a6053f06b9f

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/216133/
Detection(s):
SecuriteInfo.com.Variant.Barys.238900.16564.8180.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Forced shutdown of a system process
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/3079/overview
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Link:
https://www.filescan.io/uploads/61c590104ab5c44cbf4f28d0/reports/327ddfc1-ac4b-4291-8043-057210a4e61c/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/fd48a12f-b796-4cb5-87d6-2154c940ad8b
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/912407
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 544885 Sample: Packing list.exe Startdate: 24/12/2021 Architecture: WINDOWS Score: 96 32 Found malware configuration 2->32 34 Malicious sample detected (through community Yara rule) 2->34 36 Yara detected FormBook 2->36 38 2 other signatures 2->38 10 Packing list.exe 17 2->10         started        process3 file4 30 C:\Users\user\AppData\Local\...\kwxykwr.dll, PE32 10->30 dropped 48 Injects a PE file into a foreign processes 10->48 14 Packing list.exe 10->14         started        signatures5 process6 signatures7 50 Modifies the context of a thread in another process (thread injection) 14->50 52 Maps a DLL or memory area into another process 14->52 54 Sample uses process hollowing technique 14->54 56 Queues an APC in another process (thread injection) 14->56 17 explorer.exe 14->17 injected process8 process9 19 chkdsk.exe 17->19         started        signatures10 40 Self deletion via cmd delete 19->40 42 Modifies the context of a thread in another process (thread injection) 19->42 44 Maps a DLL or memory area into another process 19->44 46 Tries to detect virtualization through RDTSC time measurements 19->46 22 cmd.exe 1 19->22         started        24 explorer.exe 2 153 19->24         started        26 explorer.exe 1 128 19->26         started        process11 process12 28 conhost.exe 22->28         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/204831bda7d04f0905f7bf0c39e45b3772935726d8a436ee9703a19098b37e21/
Threat name:
Win32.Trojan.Barys
Create hunting rule
Status:
Malicious
First seen:
2021-12-24 09:17:10 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
7 of 43 (16.28%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ebeddpnh2bhqsbpxx4gdtzc3g5zjgvzg3csdn3uxaoqzbgftpyqq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
36b986f7d277f114be1166140b08a4ddb6300274d6365ea589fe129105445de7
Formbook
6bd5fda97afe76f3d6cc66ffac1350e77256315e151364355af9ee6d56be8ebf
Formbook
7206a2aa27d3bb73daca20e7327a3e4cc2f66940e27cda04d3e8440450617596
Formbook
75772375acbcfb6cb668fc2449671a6a83afe1434184ac7c01fd895825fcf5e6
Formbook
787179b3dd4ded4008927e4033331b00b60762872da94de5db3e6bf4a3b6e143
Formbook
9050768f69225078f05d535401510a5b361dd071430e40639e869c7247621908
Formbook
bb407aec9554cfa1ca49316956bb79bc0d4b56de2041ac864dcca689997bf20f
Formbook
d079479dd85fb94fe08f6cd70cfff35e39c14294174a8ed6f9b480ffc1cbc9b2
Formbook
d37aa13c134ce2c1938ce9b4745cfe5af5c3b8348bc7b669731592596bef5e48
Formbook
+ 12'725 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:ioup loader rat suricata
Link:
https://tria.ge/reports/211224-k82gjadeej/
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
Deletes itself
Loads dropped DLL
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
23b984023b76ab1e9f6216ddf7e46c603759075bff741b0a695e057f1f0e302f
MD5 hash:
5627dc522a2760f038a5726880797cd9
SHA1 hash:
f376811fd6366e4a3ef0e6287d3a415bdce0e570
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/1225f404-96f8-488b-83a7-d40c95778396/
Parent samples :
6b1eaa84393877f4e3ecf99eed62c76eee694b8c765b074d4f1456b54907fb63
6246f8ebc3d0501edeea55073a793b133c04fb1e8fe8cff68ff6b014b23a7fc9
02849a4363429354f94f2e725e203c59c7db6256a2de6730b7b7bacd3fe56893
9050768f69225078f05d535401510a5b361dd071430e40639e869c7247621908
4037ca0a206260d718a898ef6575600302245932ae2c2c9b6587a58a8ace5c42
204831bda7d04f0905f7bf0c39e45b3772935726d8a436ee9703a19098b37e21
SH256 hash:
7d8306e122aa54d753154786b717ea541ffb17b802fc9b4a07d12db60c0bc084
MD5 hash:
494a99c887587115ef10c9ad32c3b1b6
SHA1 hash:
fda00894cd8d88000a15b7bf7c1302a90241aeed
Link:
https://www.unpac.me/results/1225f404-96f8-488b-83a7-d40c95778396/
SH256 hash:
204831bda7d04f0905f7bf0c39e45b3772935726d8a436ee9703a19098b37e21
MD5 hash:
ef1a46a0c7f4b281a9b44fa2ac005716
SHA1 hash:
06d35c8294b07fcfe90c4b0f09e85d653cce8cfd
Link:
https://www.unpac.me/results/1225f404-96f8-488b-83a7-d40c95778396/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/204831bda7d0/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.33
Link:
https://yomi.yoroi.company/submissions/204831bda7d04f0905f7bf0c39e45b3772935726d8a436ee9703a19098b37e21

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_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.

Malspam

Formbook

Executable exe 204831bda7d04f0905f7bf0c39e45b3772935726d8a436ee9703a19098b37e21

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/216133/

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