MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 725600f8e47bd1294331aa19c3bef6d31f37204afa2a5ba45036bc8307132d5b. 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 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 725600f8e47bd1294331aa19c3bef6d31f37204afa2a5ba45036bc8307132d5b
SHA3-384 hash: 6921ddfff48ecf88d1e8f015a76a521c3a405b7c1fde2dc48483f402d0858ab016b710fc791d37ee07f77edd61316461
SHA1 hash: 69e0acfc084dd7abe87b0e63aa707cba21ff7f98
MD5 hash: 80897a05c024a5ea91bb86cf9e1c9215
humanhash: robin-network-july-eight
File name:Cari Hesap Ekstresi 100923.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:303'799 bytes
First seen:2023-10-10 11:39:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f4639a0b3116c2cfc71144b88a929cfd (106 x GuLoader, 53 x Formbook, 40 x VIPKeylogger)
ssdeep 6144:pXFKo5lXZlW3YYFPJPjr0khwbEQuQ3HXCVrgIIlYRnH+rpjIqWd6QX6n9Vn:pXRGo4PzQuQ3HyVpIeH0pjizXi9Vn
Threatray 49 similar samples on MalwareBazaar
TLSH T1BC541285F2D0D477D421AA719D3A7AA36BEA3B22417C714F4F209F2A7C211C2DE1F654
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook geo TUR

Intelligence

File Origin
# of uploads :
1
# of downloads :
308
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Win32.Evo-gen.16407.15252.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Sending a custom TCP request
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin overlay packed remcos shell32 threat virus
Link:
https://www.filescan.io/uploads/6525381464965c51f779fb70/reports/6e0855e8-31d0-4373-9250-463ca5577f1e/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/725600f8e47bd1294331aa19c3bef6d31f37204afa2a5ba45036bc8307132d5b
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/41864cb7-9595-4475-9205-e87db5960422
Result
Threat name:
FormBook, NSISDropper
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1322855
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1322855 Sample: Cari_Hesap_Ekstresi_100923.exe Startdate: 10/10/2023 Architecture: WINDOWS Score: 100 38 www.yoyufoods.com 2->38 40 www.nongsanvietco.com 2->40 42 13 other IPs or domains 2->42 58 Snort IDS alert for network traffic 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 9 other signatures 2->64 12 Cari_Hesap_Ekstresi_100923.exe 17 2->12         started        signatures3 process4 file5 36 C:\Users\user\AppData\Local\Temp\zmmhyz.exe, PE32 12->36 dropped 15 zmmhyz.exe 12->15         started        process6 signatures7 74 Multi AV Scanner detection for dropped file 15->74 76 Detected unpacking (changes PE section rights) 15->76 78 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->78 80 2 other signatures 15->80 18 zmmhyz.exe 15->18         started        process8 signatures9 50 Modifies the context of a thread in another process (thread injection) 18->50 52 Maps a DLL or memory area into another process 18->52 54 Sample uses process hollowing technique 18->54 56 Queues an APC in another process (thread injection) 18->56 21 explorer.exe 6 1 18->21 injected process10 dnsIp11 44 nongsanvietco.com 103.75.184.21, 49754, 80 VNBOOKING-AS-VNVietNamBookingcorporationVN Viet Nam 21->44 46 www.yoyufoods.com 217.160.0.55, 49749, 80 ONEANDONE-ASBrauerstrasse48DE Germany 21->46 48 5 other IPs or domains 21->48 66 System process connects to network (likely due to code injection or exploit) 21->66 25 raserver.exe 21->25         started        28 autoconv.exe 21->28         started        30 autoconv.exe 21->30         started        signatures12 process13 signatures14 68 Modifies the context of a thread in another process (thread injection) 25->68 70 Maps a DLL or memory area into another process 25->70 72 Tries to detect virtualization through RDTSC time measurements 25->72 32 cmd.exe 1 25->32         started        process15 process16 34 conhost.exe 32->34         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/725600f8e47bd1294331aa19c3bef6d31f37204afa2a5ba45036bc8307132d5b/
Threat name:
Win32.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2023-10-09 14:11:54 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
18 of 22 (81.82%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ojlab6heppissqzrvim4hpxw2mptoick7ivfxjcqg26igbytfvnq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
21140ae60aa6ba79a4d6cfc5aa5fd4cf4aa08ac5a522a4a2393f4c9552224529
Formbook
795998e9064cb981d6a40a34fbeee48381121ea7ac7175ffe5b506b11cf843d7
Formbook
92a11969793b832918bec3384ffadd4c626a7888d97454f4790529566d462022
Formbook
b88b53db5c1fd0779cb7718630d7ac90f0ff81cfc7e8495bff1325743adeff65
Formbook
bbcaa127862b5b70b5a833b3136f431c03a9165dd0a4646ba78922ebcc7ebdc3
Formbook
be001461acb26523b913f93761b14f56fc7dd7f256e90ae53b40f0b40dd859b7
Formbook
f3c99b21d43e967be5b3e53e70050b9d6dce181fe5415f9825b512850ecb0b52
Formbook
+ 39 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:k13s rat spyware stealer trojan
Link:
https://tria.ge/reports/231010-nsc1safb36/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
2e178120c897160ed0be6549dc014a2ab560f614437d63e1c60fa4564b17a5b6
MD5 hash:
f9c581e46b76a6a2527a026c5772ffec
SHA1 hash:
01af38d5986c74e59d85187c00b6cf28455734bb
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/328339d4-4e51-4836-b6d3-8165ffe30ece/
Parent samples :
eed7a348e95b5acd69c7cb10f4e4e44083ec2cd76c148dcd7fc604a625a52e6d
74bbf54c84c8a59a0f2f99487122908d30a5f04c32f16b633ff09e27a55273d6
4cd6dd9de06bd8011fe535066deb5e24c3eec032391a95a4cc1ad0a6a7351d98
690fc14f8b0395e7390646c6832d462bd421bc7caa1caa5f66654b7252a0e102
ec45ebce734d9a8be961529c08e9de4b192ffd26ea3c2fb76aaf2a1b61e01146
725600f8e47bd1294331aa19c3bef6d31f37204afa2a5ba45036bc8307132d5b
SH256 hash:
ae0295346dfef182d6b0ce99c9a11d0122fb85c3f70111b783c240a4a478a16d
MD5 hash:
bad37d7c9e72bc4fa5cb9e78cbea343b
SHA1 hash:
342f50b12e2301e1812e8a4d0b150805c481caf8
Link:
https://www.unpac.me/results/328339d4-4e51-4836-b6d3-8165ffe30ece/
SH256 hash:
725600f8e47bd1294331aa19c3bef6d31f37204afa2a5ba45036bc8307132d5b
MD5 hash:
80897a05c024a5ea91bb86cf9e1c9215
SHA1 hash:
69e0acfc084dd7abe87b0e63aa707cba21ff7f98
Link:
https://www.unpac.me/results/328339d4-4e51-4836-b6d3-8165ffe30ece/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/725600f8e47b/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/725600f8e47bd1294331aa19c3bef6d31f37204afa2a5ba45036bc8307132d5b

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: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: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:pe_no_import_table
Create hunting rule
Author:qux
Description:Detects exe does not have 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:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
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.

Malspam

Formbook

Executable exe 725600f8e47bd1294331aa19c3bef6d31f37204afa2a5ba45036bc8307132d5b

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments