MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f98b2fefbfa54e17d684f60629172f5f160259a6041b671f423eefbf0e51f949. 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: 16


Intelligence 16 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f98b2fefbfa54e17d684f60629172f5f160259a6041b671f423eefbf0e51f949
SHA3-384 hash: 02f3336020b24c03edb268faf2d7d468f1c34af25f5a6971e4240399f1e0e8fda0c7031ae1aa3a64f4f95603b5f7e886
SHA1 hash: 985fba4c665f1f1250df0a85c3169bc631d9e0a5
MD5 hash: 0d92c4776d31205c7b2275d1a78b4085
humanhash: washington-vermont-mirror-seventeen
File name:doc_Quanon_62_10-6_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:650'240 bytes
First seen:2023-10-22 07:15:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:Noj7s93wIxbzM1k19Rvt7l+SAd+GSJnhY5RgzTaz6uiczg:Oj7s93nfxfha7SJCuOz9k
Threatray 106 similar samples on MalwareBazaar
TLSH T11CD41202A2A84833CF369FF5ADB62050A3F15E557961C2CBCEC425CA06DEF35A524BD7
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)
File icon (PE):PE icon
dhash icon 00f0f0d4cc69b244 (10 x AgentTesla, 9 x Formbook, 3 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
284
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
doc_Quanon_62_10-6_pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-10-22 07:46:23 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/fcff9f62-1971-44f3-9511-bedfc6045360

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.831.29428.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Launching a process
Restart of the analyzed sample
Launching cmd.exe command interpreter
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/6534cc3fc2a76fbfed311115/reports/430312aa-6e6c-43d8-86d1-29613944ee24/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f98b2fefbfa54e17d684f60629172f5f160259a6041b671f423eefbf0e51f949
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/e644ac62-a1fe-4918-8332-e8bfa9c31946
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1329898
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
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)
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
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
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: 1329898 Sample: doc_Quanon_62_10-6_pdf.exe Startdate: 22/10/2023 Architecture: WINDOWS Score: 100 53 www.nfertilityinwomen.com 2->53 55 www.mygeneralmotorsretirement.com 2->55 57 11 other IPs or domains 2->57 73 Snort IDS alert for network traffic 2->73 75 Found malware configuration 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 11 other signatures 2->79 11 doc_Quanon_62_10-6_pdf.exe 7 2->11         started        15 Ruwtgxl.exe 5 2->15         started        signatures3 process4 file5 49 C:\Users\user\AppData\Roaming\Ruwtgxl.exe, PE32 11->49 dropped 51 C:\Users\user\AppData\Local\...\tmp5125.tmp, XML 11->51 dropped 87 Uses schtasks.exe or at.exe to add and modify task schedules 11->87 89 Adds a directory exclusion to Windows Defender 11->89 91 Tries to detect virtualization through RDTSC time measurements 11->91 93 Injects a PE file into a foreign processes 11->93 17 doc_Quanon_62_10-6_pdf.exe 11->17         started        20 powershell.exe 21 11->20         started        22 schtasks.exe 1 11->22         started        24 doc_Quanon_62_10-6_pdf.exe 11->24         started        95 Multi AV Scanner detection for dropped file 15->95 97 Machine Learning detection for dropped file 15->97 26 Ruwtgxl.exe 15->26         started        28 schtasks.exe 1 15->28         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 17->65 67 Maps a DLL or memory area into another process 17->67 69 Sample uses process hollowing technique 17->69 71 Queues an APC in another process (thread injection) 17->71 30 explorer.exe 11 1 17->30 injected 34 conhost.exe 20->34         started        36 conhost.exe 22->36         started        38 conhost.exe 28->38         started        process9 dnsIp10 59 www.escuelawakana.com 217.76.128.47, 49721, 80 ONEANDONE-ASBrauerstrasse48DE Spain 30->59 61 www.melbet-el4.top 172.67.168.139, 49719, 80 CLOUDFLARENETUS United States 30->61 63 3 other IPs or domains 30->63 99 System process connects to network (likely due to code injection or exploit) 30->99 40 systray.exe 30->40         started        43 svchost.exe 30->43         started        signatures11 process12 signatures13 81 Modifies the context of a thread in another process (thread injection) 40->81 83 Maps a DLL or memory area into another process 40->83 85 Tries to detect virtualization through RDTSC time measurements 40->85 45 cmd.exe 1 40->45         started        process14 process15 47 conhost.exe 45->47         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f98b2fefbfa54e17d684f60629172f5f160259a6041b671f423eefbf0e51f949
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f98b2fefbfa54e17d684f60629172f5f160259a6041b671f423eefbf0e51f949/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-10-06 04:35:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
18 of 23 (78.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7gfs7357uvhbpvue6ydcsfzpl4laewngaqnwoh2ch3x36dsr7feq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
0c6509de077fff4ef7548e682f672a5169136f7ce470b420f2f33890228bf0a4
Formbook
0f6bd3f07adcb52e4e0a94d3fcc307b0780cdcd2e02ff3640474cd32303b898b
Formbook
15426243aa8d60c8592a759e72f42ee2b1d9f2cbf96018c565ce70fd6778ca33
Formbook
1be417c3be0fcbe972e13bd2d3e4494e08a94bd4f572b361cadae3b88be1cc5b
Formbook
4af5374d05140e1ebf05625397c061e7e6e6396597399880f903cdda22466875
Formbook
64fdde31e18afd348c0727affafb347f0cd0203ec20268fbea9dcb4cc6d1caa9
Formbook
69b9df80a0b730564b2b56e235646d630d2bfd6d968b967f568dc298a22c6ec0
Formbook
6ec844914b335f0e27b9f536da5691fcc06e6ecc80d0af8dd7bc3ed8b3ee0a60
Formbook
d1fdb78142a09be2db38f3e704f9cc96649745d1055eef07a702ed674cb4b9ed
Formbook
f9a4e3002fdbcd93464f38fc49bebadbcc0417454c702e8298cf245fc751eee9
Formbook
+ 96 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:eg02 rat spyware stealer trojan
Link:
https://tria.ge/reports/231022-h3ttdsdh9s/
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
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
d8cea6959178d5a11c3f2a6adb96be88ff20dbd8574f63192ae707871ee04a2a
MD5 hash:
c2b85011809883903b0826f7615eabfa
SHA1 hash:
dd531edc87f80620d3d07a11b0d8f96d6656738e
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/d3abda38-3621-4bbc-816f-ccc7ce0ca37e/
Parent samples :
0c6509de077fff4ef7548e682f672a5169136f7ce470b420f2f33890228bf0a4
f98b2fefbfa54e17d684f60629172f5f160259a6041b671f423eefbf0e51f949
0372bd9c40187e5b4df86dae74c475d5f7b01de4424281dda221a579be971fb8
25e8610d483e74bac4bfc7189060e7fdeed775f6e82cd69b3a36d1a12b4e2af9
SH256 hash:
b1270dc9ec3f22c6fd2296239426ac7c48589589580d4a1b3da8188920b22a63
MD5 hash:
5c904da8528cfb1b87b15a6aa7c059cd
SHA1 hash:
f0a192969485d1bc34bf52adf37d9c20176d6b85
Link:
https://www.unpac.me/results/d3abda38-3621-4bbc-816f-ccc7ce0ca37e/
SH256 hash:
af10a81d30ea6c14a0857caa64697f78672a941419d679b34eedb82e080ad46b
MD5 hash:
ec0b80883f0b18fb75a48dd18795f514
SHA1 hash:
afe9537c27362b6769a1df0ad414b8e58d34ea40
Link:
https://www.unpac.me/results/d3abda38-3621-4bbc-816f-ccc7ce0ca37e/
SH256 hash:
7a209b18400d6cabb4448c78a214d166d55c923132e8957eb25d1b2e72dcf30a
MD5 hash:
29b1ef7434e7f95832daefb5ceb336f7
SHA1 hash:
9cf612db802000fa0bf4df5dab769ef1fbe6970d
Link:
https://www.unpac.me/results/d3abda38-3621-4bbc-816f-ccc7ce0ca37e/
SH256 hash:
f98b2fefbfa54e17d684f60629172f5f160259a6041b671f423eefbf0e51f949
MD5 hash:
0d92c4776d31205c7b2275d1a78b4085
SHA1 hash:
985fba4c665f1f1250df0a85c3169bc631d9e0a5
Link:
https://www.unpac.me/results/d3abda38-3621-4bbc-816f-ccc7ce0ca37e/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f98b2fefbfa5/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/f98b2fefbfa54e17d684f60629172f5f160259a6041b671f423eefbf0e51f949

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: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: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 f98b2fefbfa54e17d684f60629172f5f160259a6041b671f423eefbf0e51f949

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments