MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8693f77ce4f72e78f7635949a2cf836c06779be7cc07909e5d134d6d3089ed43. 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 2 File information Comments
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SHA256 hash: 8693f77ce4f72e78f7635949a2cf836c06779be7cc07909e5d134d6d3089ed43
SHA3-384 hash: 00182311c74decf875c2cf61e5f82480bba1aedcea5837c4f971a82129cea0ab6882cd7aa9c4a83e13758cd726ffe1de
SHA1 hash: c15a6db265720b0f9f20e5011a40cc9fa5dc745f
MD5 hash: 7e99011bfd02e5681a7fb6a526872a58
humanhash: tennessee-apart-six-lima
File name:Invoice.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:548'864 bytes
First seen:2022-03-17 15:24:53 UTC
Last seen:2022-03-17 16:43:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:ykyjI1931ueZXVY+L7BSruOdiaHn2TbECHPbZ:yS19ZZlaub42
Threatray 11'735 similar samples on MalwareBazaar
TLSH T115C48B7E156D6377CA7BD7398650042AF690D1EF7802AC19EE931B810D231CA7FC662E
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
244
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
Invoice.exe
Verdict:
Malicious activity
Analysis date:
2022-03-17 23:19:23 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/bc867546-ca48-4d97-9358-7a7287b65b00

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/251989/
Detection(s):
SecuriteInfo.com.Trojan.MalPack.22859.26312.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
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:
obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/623352d6b94fb38cb499c714/reports/7deb2c58-4ad8-4e16-b9e2-fbe784ad3da0/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:
Agent Tesla
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3539adb6-8b4d-4e7e-a860-6b81b7d31871
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/958864
Signature
.NET source code contains very large strings
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
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 dnsIp2 2 Behavior Graph ID: 591347 Sample: Invoice.exe Startdate: 17/03/2022 Architecture: WINDOWS Score: 100 37 www.0q3tj55q5dp7zdlwx.cloud 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus detection for URL or domain 2->43 45 11 other signatures 2->45 11 Invoice.exe 6 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\omwzmlqQggGY.exe, PE32 11->31 dropped 33 C:\Users\user\AppData\Local\...\tmpE46D.tmp, XML 11->33 dropped 35 C:\Users\user\AppData\...\Invoice.exe.log, ASCII 11->35 dropped 55 Uses schtasks.exe or at.exe to add and modify task schedules 11->55 57 Tries to detect virtualization through RDTSC time measurements 11->57 59 Injects a PE file into a foreign processes 11->59 15 Invoice.exe 11->15         started        18 schtasks.exe 1 11->18         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 20 explorer.exe 15->20 injected 22 conhost.exe 18->22         started        process9 process10 24 wlanext.exe 20->24         started        signatures11 47 Self deletion via cmd delete 24->47 49 Modifies the context of a thread in another process (thread injection) 24->49 51 Maps a DLL or memory area into another process 24->51 53 Tries to detect virtualization through RDTSC time measurements 24->53 27 cmd.exe 1 24->27         started        process12 process13 29 conhost.exe 27->29         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/8693f77ce4f72e78f7635949a2cf836c06779be7cc07909e5d134d6d3089ed43/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-03-17 15:25:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
20 of 27 (74.07%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=q2j7o7he64xhr53dlfe2ft4dnqdhpg7hzqdzbhs5cngw2mej5vbq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
07ea6a87a1ac2a5363e7756a8994f7ed8b971b94cef918803ab3b6dbe9e6b845
Formbook
1db0c14308c42fd03886fdef546388f61558e612fce7f7043c28c822ac0c9b5e
Formbook
3a1b706adecf798ffa11002e153bad33e9f82e6a9da82f7777c27d2cf7b23b0d
Formbook
40fa9ba8113198bf73af0101d0c0275ed1ef014a15fd83457dbdbd29e80f99a8
Formbook
47100e432f02eea97ec7e7ea42954b8c713eefd11380cc79d459804ba4719560
Formbook
780e7dce2d7bd0d03577dcfaf9f2c52a6cb755e1efb3213516c3159a2a324f3a
Formbook
952fbe116a1aac4f0082519a0dc920ee5dc48e58fe85abcc27b82ecc0ac4e54f
Formbook
b55f35c86108c878bde53d36cfb0e5233aa97ccc006df085c08ffd1ba38b657e
Formbook
da30dd86e912cbfcf0cb4306265cedf47604891dc868db7c59dd92d47ad32063
Formbook
+ 11'725 additional samples on MalwareBazaar
Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:pc20 loader rat
Link:
https://tria.ge/reports/220317-stmntscbd5/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Xloader Payload
Xloader
Unpacked files
SH256 hash:
55368c2d63542a60b2a0fc3d76ab706893aebbf8f83bd51e309e46187102336c
MD5 hash:
1d2291ecaf0039c1165bdc594a0ac21a
SHA1 hash:
4036a5c4cc371d8113623527a4111d846ad9b630
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/fdc07481-dee0-4a55-a8b2-09a8a1f6d0c2/
Parent samples :
a15521135ce72df5cc2d9a02d558558ee3c38e48025e806173f15488b49034f1
db10c659605c7a9a4fe4c7e539cd8edbd8b14d84403b85df2ed36e7d51b4c485
40fa9ba8113198bf73af0101d0c0275ed1ef014a15fd83457dbdbd29e80f99a8
8693f77ce4f72e78f7635949a2cf836c06779be7cc07909e5d134d6d3089ed43
6d6d9ddbe70bd9d609cfd70f0236a2562b596a6744f283c3b3e4c2ae26a686f9
SH256 hash:
b78d051141d990143236db32781e2f9baac49c11766840095ffa419bd8131021
MD5 hash:
068b210d6bd531ab6a289b73556bb85c
SHA1 hash:
60eec921fd92818999b09e11f1bab42f725dddcf
Link:
https://www.unpac.me/results/fdc07481-dee0-4a55-a8b2-09a8a1f6d0c2/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/fdc07481-dee0-4a55-a8b2-09a8a1f6d0c2/
SH256 hash:
8693f77ce4f72e78f7635949a2cf836c06779be7cc07909e5d134d6d3089ed43
MD5 hash:
7e99011bfd02e5681a7fb6a526872a58
SHA1 hash:
c15a6db265720b0f9f20e5011a40cc9fa5dc745f
Link:
https://www.unpac.me/results/fdc07481-dee0-4a55-a8b2-09a8a1f6d0c2/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/8693f77ce4f7/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/8693f77ce4f72e78f7635949a2cf836c06779be7cc07909e5d134d6d3089ed43

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
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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 8693f77ce4f72e78f7635949a2cf836c06779be7cc07909e5d134d6d3089ed43

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/251989/

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