MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23ef5db6584c6bd3842da3e3f7dc7ae7a4b9384cd078765d3752a20de5b9e774. 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 23 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 23ef5db6584c6bd3842da3e3f7dc7ae7a4b9384cd078765d3752a20de5b9e774
SHA3-384 hash: a2308b3e286b5c794859bad65f35f4411b1c64a1ed89008376c207d0c234874fcb1223076c3c5b5e678b26b3ccd04756
SHA1 hash: dadb2a626935a84a3b72c50d960b47148c08969b
MD5 hash: 4860cce1066cd92816e2f484206878c8
humanhash: minnesota-hotel-vegan-angel
File name:SecuriteInfo.com.Win32.PWSX-gen.2161.2878
Download: download sample
Signature Formbook
Create hunting rule
File size:639'488 bytes
First seen:2023-12-11 08:28:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:L3IU8S6eUd+yE4CJLeI7pd8k8IH+cxSBcaD+PQGNg9mIzPE+tUZ:7ItSAd+yEj/b8IH4Bc8ATrp
Threatray 253 similar samples on MalwareBazaar
TLSH T1B8D423CE3E988B23C47E53F8D074940467B1782B48A7E13DEE9BC1CAA5A3360516177B
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
301
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
23ef5db6584c6bd3842da3e3f7dc7ae7a4b9384cd078765d3752a20de5b9e774.exe
Verdict:
Malicious activity
Analysis date:
2023-12-12 04:29:27 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/20ee4b13-761a-4903-93fa-8b3a9667bcfb

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
zgRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/464977/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Win32.PWSX-gen.2161.2878.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
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 with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/6576c85eda3178d99ce11e5b/reports/1c6726de-71bd-45ca-8649-29a44410c5ec/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/23ef5db6584c6bd3842da3e3f7dc7ae7a4b9384cd078765d3752a20de5b9e774
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/569da404-de0b-4a80-8b43-c652c7a80dbc
Result
Threat name:
FormBook, zgRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1358179
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1358179 Sample: SecuriteInfo.com.Win32.PWSX... Startdate: 11/12/2023 Architecture: WINDOWS Score: 100 52 www.zugingbetire.sbs 2->52 54 www.yahyag.com 2->54 56 17 other IPs or domains 2->56 66 Snort IDS alert for network traffic 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 Antivirus detection for URL or domain 2->70 72 7 other signatures 2->72 10 ACAviIz.exe 5 2->10         started        13 SecuriteInfo.com.Win32.PWSX-gen.2161.2878.exe 7 2->13         started        signatures3 process4 file5 82 Injects a PE file into a foreign processes 10->82 16 ACAviIz.exe 10->16         started        19 schtasks.exe 1 10->19         started        48 C:\Users\user\AppData\Roaming\ACAviIz.exe, PE32 13->48 dropped 50 C:\Users\user\AppData\Local\...\tmpD4B0.tmp, XML 13->50 dropped 84 Uses schtasks.exe or at.exe to add and modify task schedules 13->84 86 Adds a directory exclusion to Windows Defender 13->86 21 powershell.exe 23 13->21         started        23 schtasks.exe 1 13->23         started        25 SecuriteInfo.com.Win32.PWSX-gen.2161.2878.exe 13->25         started        27 SecuriteInfo.com.Win32.PWSX-gen.2161.2878.exe 13->27         started        signatures6 process7 signatures8 64 Maps a DLL or memory area into another process 16->64 29 XJEwwLQjuSaQcjNoutRtHzjEk.exe 16->29 injected 32 conhost.exe 19->32         started        34 conhost.exe 21->34         started        36 conhost.exe 23->36         started        38 WerFault.exe 21 16 25->38         started        process9 signatures10 88 Maps a DLL or memory area into another process 29->88 40 ktmutil.exe 13 29->40         started        process11 signatures12 74 Tries to steal Mail credentials (via file / registry access) 40->74 76 Tries to harvest and steal browser information (history, passwords, etc) 40->76 78 Writes to foreign memory regions 40->78 80 3 other signatures 40->80 43 XJEwwLQjuSaQcjNoutRtHzjEk.exe 40->43 injected 46 firefox.exe 40->46         started        process13 dnsIp14 58 www.zugingbetire.sbs 109.123.121.243, 49755, 49756, 49757 UK2NET-ASGB United Kingdom 43->58 60 www.benjamin-lauber.bayern 91.195.240.13, 49767, 49768, 49769 SEDO-ASDE Germany 43->60 62 8 other IPs or domains 43->62
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/23ef5db6584c6bd3842da3e3f7dc7ae7a4b9384cd078765d3752a20de5b9e774
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/23ef5db6584c6bd3842da3e3f7dc7ae7a4b9384cd078765d3752a20de5b9e774/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-12-11 06:09:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
14 of 23 (60.87%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=epxv3nsyjrv5hbbnupr7pxd246slsocm2b4hmxjxkkra3znz452a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
057157bfc3e5facd4c824784f5c0875a994218de1dba722223a12ec55022c910
Formbook
33d4f40d83493428f817717c92af34b335788346735a5563e7ee515993fa8d93
Formbook
4166ad5cb4dc5c1a94846632840494ae95cb1677130a11443889af9a9c44e8e7
Formbook
6bf7843d672f60dc32a986a9db555c78e31b38f4b70d4e0af687e9e0a69fa8f8
Formbook
a8149ed051ce39e0fd94eb4f6af6934cc9e5860242aec44c3ea3a36454af69df
Formbook
c1d4761f457bb60b49dea4651a3354da175a3e12aafd452ad186c1ba7337ccd0
Formbook
+ 243 additional samples on MalwareBazaar
Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:zgrat rat
Link:
https://tria.ge/reports/231211-kdkwasbag8/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Detect ZGRat V1
ZGRat
Unpacked files
SH256 hash:
3b41e380d6573a939a5577a2a47fe73cd22e885b028889502732e8e420aace26
MD5 hash:
53e31d7550cd68eac7099aa77c373ab7
SHA1 hash:
a36756de88059307406c9af3bd29bbbacd489075
Link:
https://www.unpac.me/results/bade4bcd-5b7c-4c37-95c1-b8b2601e3273/
SH256 hash:
3864debb4cd8c56d43a9b21e04a4b6c83b750aa812df9fe2f7e6cd4d3c92bf81
MD5 hash:
68586c7980f893ab3a62de733b886ecc
SHA1 hash:
922ecee2936ac5038d65f1e2f7698a3af17a6120
Link:
https://www.unpac.me/results/bade4bcd-5b7c-4c37-95c1-b8b2601e3273/
SH256 hash:
41fe7d4711c763caa5ad3946be44ee7d9f5b20c34faaa03e8c6e6f0d55e560a0
MD5 hash:
f1a5860db4f8c8116de8c5f2ba91f379
SHA1 hash:
76f5b9bbcbde37764337dffab5673f7b528e788c
Link:
https://www.unpac.me/results/bade4bcd-5b7c-4c37-95c1-b8b2601e3273/
SH256 hash:
c34dfbc328de247d25d670c3b7853f1dddd2ec2607d5dbb0480743b45a15ea64
MD5 hash:
85b87384830444e6ab86a4a692ce96cc
SHA1 hash:
0d7d4614cf31d27e68ebf48e76fb1d308cc08152
Link:
https://www.unpac.me/results/bade4bcd-5b7c-4c37-95c1-b8b2601e3273/
SH256 hash:
7d968ee2ec1bf4c1bf9228f8f2794675de987ac83bac5f8c608963526a435ed3
MD5 hash:
1845455753429aeee7c7762ef407d8ea
SHA1 hash:
050f55f9458f419c8fec7b31cf80542849d33a76
Link:
https://www.unpac.me/results/bade4bcd-5b7c-4c37-95c1-b8b2601e3273/
SH256 hash:
23ef5db6584c6bd3842da3e3f7dc7ae7a4b9384cd078765d3752a20de5b9e774
MD5 hash:
4860cce1066cd92816e2f484206878c8
SHA1 hash:
dadb2a626935a84a3b72c50d960b47148c08969b
Link:
https://www.unpac.me/results/bade4bcd-5b7c-4c37-95c1-b8b2601e3273/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/23ef5db6584c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/23ef5db6584c6bd3842da3e3f7dc7ae7a4b9384cd078765d3752a20de5b9e774

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/464977/

Comments