MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 838646bc9841804d7671fb25b3fd5d3e67e91c1d341c7125ce63ad436ada5f26. 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 2 File information Comments
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SHA256 hash: 838646bc9841804d7671fb25b3fd5d3e67e91c1d341c7125ce63ad436ada5f26
SHA3-384 hash: 3634b07309282daf522b751543520acbdc586ff4df9aa3aa73fa211f9eb988fc4d044be987d75e021d15e7424610296c
SHA1 hash: 7b88b9f610955fbdc2ed7c7f39ab645cb0a74623
MD5 hash: 9ea1518ff15fd5b49c6c73175fa0ba6a
humanhash: venus-white-whiskey-mike
File name:Purchase Order.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:379'904 bytes
First seen:2022-01-24 06:41:38 UTC
Last seen:2022-01-24 09:10:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:QnUDMEDUPkvA47EcfYWCc1JLNsv0dYkaUzpUAT8MsZXa:EUDSqAMwWLdNgDUzF4H
Threatray 12'890 similar samples on MalwareBazaar
TLSH T13684123A56ED162BD1FC0B3E8690960353B41214A1B2E6DF5ECEA16B6C7B7011250BFF
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
179
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/221822/
Detection(s):
SecuriteInfo.com.CAP_HookExKeylogger.16432.5551.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
greyware keylogger obfuscated packed
Link:
https://www.filescan.io/uploads/61ee4a41d32385db63268341/reports/dcb2ba45-299c-4aa6-ab37-041fe2514f4f/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/d32a130d-53a7-4455-b4bc-56a70de04e42
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/926062
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
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 dropped file
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
Self deletion via cmd delete
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 558536 Sample: Purchase Order.exe Startdate: 24/01/2022 Architecture: WINDOWS Score: 100 55 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->55 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 17 other signatures 2->61 10 Purchase Order.exe 7 2->10         started        process3 dnsIp4 53 192.168.2.1 unknown unknown 10->53 39 C:\Users\user\AppData\Roaming39IDoAa.exe, PE32 10->39 dropped 41 C:\Users\user\...41IDoAa.exe:Zone.Identifier, ASCII 10->41 dropped 43 C:\Users\user\AppData\Local\Temp\tmp89B.tmp, XML 10->43 dropped 45 C:\Users\user\...\Purchase Order.exe.log, ASCII 10->45 dropped 67 Adds a directory exclusion to Windows Defender 10->67 15 Purchase Order.exe 10->15         started        18 powershell.exe 25 10->18         started        20 schtasks.exe 1 10->20         started        file5 signatures6 process7 signatures8 77 Modifies the context of a thread in another process (thread injection) 15->77 79 Maps a DLL or memory area into another process 15->79 81 Sample uses process hollowing technique 15->81 83 Queues an APC in another process (thread injection) 15->83 22 explorer.exe 15->22 injected 26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        process9 dnsIp10 47 www.176ssjp0032.xyz 22->47 49 www.alashpride.info 77.220.207.191, 49764, 80 DDOS-GUARDRU Kazakhstan 22->49 51 5 other IPs or domains 22->51 63 System process connects to network (likely due to code injection or exploit) 22->63 65 Performs DNS queries to domains with low reputation 22->65 30 help.exe 22->30         started        33 autoconv.exe 22->33         started        signatures11 process12 signatures13 69 Self deletion via cmd delete 30->69 71 Modifies the context of a thread in another process (thread injection) 30->71 73 Maps a DLL or memory area into another process 30->73 75 Tries to detect virtualization through RDTSC time measurements 30->75 35 cmd.exe 1 30->35         started        process14 process15 37 conhost.exe 35->37         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/838646bc9841804d7671fb25b3fd5d3e67e91c1d341c7125ce63ad436ada5f26/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-01-24 03:59:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qodenpeyigae25tr7ms3h7k5hzt6sha5gqohcjoomowug2w2l4ta._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
00f38651e028591175cc482289f6ceabfed9592b7176a24d8f00999ebb0bf996
Formbook
2021c1d6e9983c17fea9c773618a95407628b9c7b58071edea71c8525cd17d7e
Formbook
786698eab83f77c1fdc3d37daf49966befe788b0e85167083726354225176d1f
Formbook
d079479dd85fb94fe08f6cd70cfff35e39c14294174a8ed6f9b480ffc1cbc9b2
Formbook
e6cde5c1b614549613d30761b34c899f4ff69d7e6e3147c21d68bedd64f8fe25
Formbook
f5db176e54d46bec4fe01e52b8f5798b154ce202f47c0cbefe111b569544a707
Formbook
f80dd0bf7402bebd03d303c97c8dd3f921d3e923a2521f4a2af2e4bf3c288aa1
Formbook
fd137acb0bda1d576079078b74fe610d16031da47a801440c7ba955f4504a6e5
Formbook
+ 12'880 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:oms5 loader rat
Link:
https://tria.ge/reports/220124-hgcmzsdeb6/
Behaviour
Creates scheduled task(s)
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
Xloader Payload
Xloader
Unpacked files
SH256 hash:
f267933c618caf2474f8366ae6962780d0b07dfe783499e34b7c1f8560bf2d77
MD5 hash:
a41a380e999d8fb946182afdfbcc7574
SHA1 hash:
0a0babeeea27536b532f9738c73aef6b56ef191b
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/f17d9182-6745-461d-8c74-23d180b907f0/
Parent samples :
719c2edea3c0aaa814d65c272598d8d64db5ac0d0cf0a9adb12fe7a0a1fc9f19
838646bc9841804d7671fb25b3fd5d3e67e91c1d341c7125ce63ad436ada5f26
d4524304e059a341b36dfff67ecfde1832142373d0728956fd8efb079440035f
3e317e0e4e62e0842ba4d1d52f8bd3e45a1b7a8e01e784771803d722dbfaf3a8
76a94b9d2b8e2afb89be57cb0adb366cd6deaf4bac27578bd523aad74998086e
f476ca92b53a6add2ab9d1d81e1397e387c15d8bb80e0fe4e768036a091ce96f
SH256 hash:
6967069cd9a890f0d3af06cd4a5df9fecc9a14f5fb8cbd3894d660def36ed53b
MD5 hash:
11b0c8eb5fd2151626d140a17bec824e
SHA1 hash:
7bfa788e0d83c33bc90cb30ed5244ad3b219adb2
Link:
https://www.unpac.me/results/f17d9182-6745-461d-8c74-23d180b907f0/
SH256 hash:
8325a5cf7942bb46ac528c836b79180c05d71a4e7de108693d303d56bcc5def1
MD5 hash:
efdf2c54a74297c24bc73285376c432b
SHA1 hash:
564f25afb6c5599cdcd5fafaff32c1475e581af4
Link:
https://www.unpac.me/results/f17d9182-6745-461d-8c74-23d180b907f0/
SH256 hash:
838646bc9841804d7671fb25b3fd5d3e67e91c1d341c7125ce63ad436ada5f26
MD5 hash:
9ea1518ff15fd5b49c6c73175fa0ba6a
SHA1 hash:
7b88b9f610955fbdc2ed7c7f39ab645cb0a74623
Link:
https://www.unpac.me/results/f17d9182-6745-461d-8c74-23d180b907f0/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/838646bc9841/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/838646bc9841804d7671fb25b3fd5d3e67e91c1d341c7125ce63ad436ada5f26

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: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.

Malspam

Formbook

Executable exe 838646bc9841804d7671fb25b3fd5d3e67e91c1d341c7125ce63ad436ada5f26

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/221822/

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