MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f26ef2dc3870b6ee2f05973fcd97b1e55f817524eac8bdbe6863e584c6cf2821. 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: 18


Intelligence 18 IOCs YARA 4 File information Comments 1
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SHA256 hash: f26ef2dc3870b6ee2f05973fcd97b1e55f817524eac8bdbe6863e584c6cf2821
SHA3-384 hash: 95468da6b122ba10d4b7095a560ed8c85a9c9ef15bd0a2d14290854e7ebb86c26a5ee9916278490c2a6f1b7f5db24f86
SHA1 hash: 38eb108a25c85f8dfa59ad7d4d09945f9e26094b
MD5 hash: 1f061e24e82b471e201b57b67f446b7b
humanhash: ohio-mirror-pennsylvania-jig
File name:1f061e24e82b471e201b57b67f446b7b
Download: download sample
Signature Formbook
Create hunting rule
File size:646'656 bytes
First seen:2023-11-09 07:19:08 UTC
Last seen:2023-11-09 09:16:28 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'611 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:oazTHA60Bj9e2hcdm1E+vme/TbyXKmusfchlX+GdTpq6/C+7:oafHyBjA2hE+Oev/m1fcTuGppJ6+7
Threatray 250 similar samples on MalwareBazaar
TLSH T1D9D46A3D1EAD123BC1B9DFA58FC1D42BF1D4A9A73151AD78A4D703A64302A56F9C023E
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
290
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Quotation.xls
Verdict:
Malicious activity
Analysis date:
2023-11-09 07:00:57 UTC
Tags:
phishing phishing-pdf phishing-xls opendir exploit cve-2017-11882 loader formbook xloader stealer spyware trojan
Link:
https://app.any.run/tasks/535b3abf-9570-41ab-b0da-6bbf4d1b287f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Inject4.59820.27485.17823.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP 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 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
Using the Windows Management Instrumentation requests
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/654c88362546bd423f149313/reports/539ad461-0a45-4e68-8d46-4650b6a30d02/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f26ef2dc3870b6ee2f05973fcd97b1e55f817524eac8bdbe6863e584c6cf2821
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/6f5b0fd2-02de-40fb-8110-5b739679c61e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1339536
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected FormBook malware
Found malware configuration
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)
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Steal Google chrome login data
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
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1339536 Sample: jYRjr28sHR.exe Startdate: 09/11/2023 Architecture: WINDOWS Score: 100 66 www.souqshopper.com 2->66 68 www.rajawali99pkv.com 2->68 70 14 other IPs or domains 2->70 88 Snort IDS alert for network traffic 2->88 90 Found malware configuration 2->90 92 Malicious sample detected (through community Yara rule) 2->92 94 12 other signatures 2->94 11 jYRjr28sHR.exe 7 2->11         started        15 NKApKNeU.exe 5 2->15         started        signatures3 process4 file5 62 C:\Users\user\AppData\Roaming62KApKNeU.exe, PE32 11->62 dropped 64 C:\Users\user\AppData\Local\...\tmp5403.tmp, XML 11->64 dropped 106 Uses schtasks.exe or at.exe to add and modify task schedules 11->106 108 Adds a directory exclusion to Windows Defender 11->108 110 Tries to detect virtualization through RDTSC time measurements 11->110 17 jYRjr28sHR.exe 11->17         started        20 powershell.exe 23 11->20         started        22 schtasks.exe 1 11->22         started        112 Antivirus detection for dropped file 15->112 114 Multi AV Scanner detection for dropped file 15->114 116 Machine Learning detection for dropped file 15->116 118 Injects a PE file into a foreign processes 15->118 24 NKApKNeU.exe 15->24         started        26 schtasks.exe 1 15->26         started        28 NKApKNeU.exe 15->28         started        signatures6 process7 signatures8 78 Modifies the context of a thread in another process (thread injection) 17->78 80 Maps a DLL or memory area into another process 17->80 82 Sample uses process hollowing technique 17->82 84 Queues an APC in another process (thread injection) 17->84 30 explorer.exe 4 1 17->30 injected 34 conhost.exe 20->34         started        36 conhost.exe 22->36         started        38 conhost.exe 26->38         started        process9 dnsIp10 72 bproxy.9114.net-cdn.net 178.128.48.21, 49743, 49744, 80 DIGITALOCEAN-ASNUS Netherlands 30->72 74 www.kilid102.cloud 172.67.200.42, 49730, 49731, 80 CLOUDFLARENETUS United States 30->74 76 6 other IPs or domains 30->76 120 System process connects to network (likely due to code injection or exploit) 30->120 40 rundll32.exe 18 30->40         started        44 colorcpl.exe 30->44         started        46 autofmt.exe 30->46         started        signatures11 process12 file13 58 C:\Users\user\AppData\...\O75logrv.ini, data 40->58 dropped 60 C:\Users\user\AppData\...\O75logri.ini, data 40->60 dropped 96 Detected FormBook malware 40->96 98 Tries to steal Mail credentials (via file / registry access) 40->98 100 Tries to harvest and steal browser information (history, passwords, etc) 40->100 104 4 other signatures 40->104 48 cmd.exe 40->48         started        52 firefox.exe 40->52         started        102 Tries to detect virtualization through RDTSC time measurements 44->102 signatures14 process15 file16 56 C:\Users\user\AppData\Local\Temp\DB1, SQLite 48->56 dropped 86 Tries to harvest and steal browser information (history, passwords, etc) 48->86 54 conhost.exe 48->54         started        signatures17 process18
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f26ef2dc3870b6ee2f05973fcd97b1e55f817524eac8bdbe6863e584c6cf2821
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f26ef2dc3870b6ee2f05973fcd97b1e55f817524eac8bdbe6863e584c6cf2821/
Threat name:
ByteCode-MSIL.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2023-11-09 06:54:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6jxpfxbyoc3o4lyfs4743f5r4vpyc5je5lel3ptimpsyjrwpfaqq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
3ac037f29c08bafccd3cf6c0e88cb933795ea25bf1e9415ed89e83574b7f2566
Formbook
5e4b300ac46a2d4719d60e261c479afc3ed6f4027afcb5f620a7bdf33d876336
Formbook
64fdde31e18afd348c0727affafb347f0cd0203ec20268fbea9dcb4cc6d1caa9
Formbook
8ede431d0ad3096d50b23828dac3e43ac4c05f5154be8e7ccf33b45d7abb118f
Formbook
92a11969793b832918bec3384ffadd4c626a7888d97454f4790529566d462022
Formbook
982a9a52e532bbfe52941c4ab95c2899c1af75e9a3eee2b1977e3f49e8a3e71e
Formbook
b68dead34ddb1b8d099ea67e476e174b7081bcc293a1a4fa77afc5bce3a51a7c
Formbook
cd1c9fad93fdc00b3d2b34bb65d84029c5a8529b7eba10b4922b503dca449c74
Formbook
f26ef2dc3870b6ee2f05973fcd97b1e55f817524eac8bdbe6863e584c6cf2821
Formbook
f9a4e3002fdbcd93464f38fc49bebadbcc0417454c702e8298cf245fc751eee9
Formbook
+ 240 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:bp31 rat spyware stealer trojan
Link:
https://tria.ge/reports/231109-h54flshe74/
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
Formbook payload
Formbook
Unpacked files
SH256 hash:
0a7ae1e6fc0e7070ebe1dbc0be54ab53467aec2dbf296ac4ebc2fb67506ec480
MD5 hash:
137eea57bcd5901a284aa70da60a4f14
SHA1 hash:
d58ed42e28a1752c6fb789686ab3f63cbc5ed694
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/7c040105-8367-4fce-a569-18827f5cf8bc/
Parent samples :
f26ef2dc3870b6ee2f05973fcd97b1e55f817524eac8bdbe6863e584c6cf2821
925fa037b496ed141df2f58ee1eddac36a26a9ec3bf6888c7e4066764fa0f51c
29b83b860f2b115aaceaf7e5a5532c24d736392e34a5eaef229f39a0ba7bb983
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/7c040105-8367-4fce-a569-18827f5cf8bc/
SH256 hash:
549299549d7725c89255e81d9093c84689d7272f0706142580ca9aaf1b69e959
MD5 hash:
02bf073fc9807248a0455b33ce4d3d3c
SHA1 hash:
b9561fcb07ddcc8ef8fd034c8ecdf1bb5a70fb4f
Link:
https://www.unpac.me/results/7c040105-8367-4fce-a569-18827f5cf8bc/
SH256 hash:
bfef9eac82e53e8d63bcb3b3022880eaf8f22cbbc6c69f3782b59c438f649f12
MD5 hash:
ddf81912128dd196140e9be656c3a212
SHA1 hash:
51221baf7115f7f2de03cd00b8b25cfde9241a35
Link:
https://www.unpac.me/results/7c040105-8367-4fce-a569-18827f5cf8bc/
SH256 hash:
f26ef2dc3870b6ee2f05973fcd97b1e55f817524eac8bdbe6863e584c6cf2821
MD5 hash:
1f061e24e82b471e201b57b67f446b7b
SHA1 hash:
38eb108a25c85f8dfa59ad7d4d09945f9e26094b
Link:
https://www.unpac.me/results/7c040105-8367-4fce-a569-18827f5cf8bc/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f26ef2dc3870/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/f26ef2dc3870b6ee2f05973fcd97b1e55f817524eac8bdbe6863e584c6cf2821

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:NET
Create hunting rule
Author:malware-lu
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.

Web download

Formbook

Executable exe f26ef2dc3870b6ee2f05973fcd97b1e55f817524eac8bdbe6863e584c6cf2821

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2729140/

Comments


Avatar
zbet commented on 2023-11-09 07:19:09 UTC

url : hxxp://103.29.3.200/W0811T/wininit.exe