MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b547804ebc3fd98bd35ffea608b152871d8387a473ac22fb547836df0085670f. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b547804ebc3fd98bd35ffea608b152871d8387a473ac22fb547836df0085670f
SHA3-384 hash: 6dbfda1f2894492dde96b39e9b093ee11f84f59f334205e30161c22e6e68d4416062397887d597f807658655dd7a4fb5
SHA1 hash: e2ebe742bae87efca8021c301af89c7f8d180c13
MD5 hash: 22eda30b572ee1c13f93a00d2d617d23
humanhash: victor-red-robin-cola
File name:Quotation Request.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:673'280 bytes
First seen:2022-11-17 09:27:09 UTC
Last seen:2022-11-17 11:35:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:JFt+htgZyzCgn/5zdAwvZMT5C+hTSz/G74s1PKWSpYoE9xZGdko+EUBH4r+87yKw:vsL/zfUTlgsxZGQNVKW9noSh
TLSH T103E4282D79BCF412EF37A9A70EE6EA4BCC301241121E81175D293BDEE93587A3D4D14A
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
223
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Quotation Request.exe
Verdict:
Malicious activity
Analysis date:
2022-11-17 09:28:58 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/15360316-3c4e-4720-b311-0dbeafc374ff

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/335256/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.1350.31808.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed phishing
Link:
https://www.filescan.io/uploads/6375fea34cfa4744015c7134/reports/1619fea9-e216-4a87-a825-50acc21a1596/overview
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/64af7f27-b40f-47e3-9847-2626464ccfe7
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1115623
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
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
System process connects to network (likely due to code injection or exploit)
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 signatures2 2 Behavior Graph ID: 748328 Sample: Quotation Request.exe Startdate: 17/11/2022 Architecture: WINDOWS Score: 100 66 Malicious sample detected (through community Yara rule) 2->66 68 Sigma detected: Scheduled temp file as task from temp location 2->68 70 Multi AV Scanner detection for submitted file 2->70 72 11 other signatures 2->72 10 Quotation Request.exe 7 2->10         started        14 JokljdanKUzPU.exe 5 2->14         started        process3 file4 46 C:\Users\user\AppData\...\JokljdanKUzPU.exe, PE32 10->46 dropped 48 C:\...\JokljdanKUzPU.exe:Zone.Identifier, ASCII 10->48 dropped 50 C:\Users\user\AppData\Local\...\tmp447F.tmp, XML 10->50 dropped 52 C:\Users\user\...\Quotation Request.exe.log, ASCII 10->52 dropped 80 Adds a directory exclusion to Windows Defender 10->80 16 Quotation Request.exe 10->16         started        19 powershell.exe 21 10->19         started        21 schtasks.exe 1 10->21         started        82 Multi AV Scanner detection for dropped file 14->82 84 Machine Learning detection for dropped file 14->84 86 Tries to detect virtualization through RDTSC time measurements 14->86 23 JokljdanKUzPU.exe 14->23         started        25 schtasks.exe 1 14->25         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 16->58 60 Maps a DLL or memory area into another process 16->60 62 Sample uses process hollowing technique 16->62 64 Queues an APC in another process (thread injection) 16->64 27 explorer.exe 16->27 injected 31 conhost.exe 19->31         started        33 conhost.exe 21->33         started        35 conhost.exe 25->35         started        process8 dnsIp9 54 www.tiannongtuan.com 156.234.70.54, 49699, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 27->54 56 www.highthunder.online 27->56 88 System process connects to network (likely due to code injection or exploit) 27->88 37 systray.exe 27->37         started        40 raserver.exe 27->40         started        signatures10 process11 signatures12 74 Modifies the context of a thread in another process (thread injection) 37->74 76 Maps a DLL or memory area into another process 37->76 78 Tries to detect virtualization through RDTSC time measurements 37->78 42 cmd.exe 1 37->42         started        process13 process14 44 conhost.exe 42->44         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b547804ebc3fd98bd35ffea608b152871d8387a473ac22fb547836df0085670f/
Threat name:
ByteCode-MSIL.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-11-16 08:56:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
29 of 40 (72.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wvdyatv4h7myxu2772tarmksq4oyhb5eoowcf62upa3n6aefm4hq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:c0e5 rat spyware stealer trojan
Link:
https://tria.ge/reports/221117-lfbk3sab3v/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d967aed2-74ac-4fac-9985-a298aab7f004
Unpacked files
SH256 hash:
6ab89f8986f9fa283388241f9202fec427d8de369a0397ecc9002e61e6adb55e
MD5 hash:
2c4a1f95e086afe69bb64c1295b63bcd
SHA1 hash:
5bf91c6bc26184e0bcb3be0cb6c86475de12e00a
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/f933999e-37b1-4c9d-89f0-3d1f2154e8e4/
Parent samples :
6896d536efc4ff152a38b540d922490261be8f76eeb3a1e41f03744330e0fb1b
df636c98d02fd506a57eec3a4717b4c36ed3aeba0af0ec10ff7b3471bacfbdcd
46951a3ebc868e98ba6c1211f987e0b938d7e6e8499902adbb8b77e97fdd4c5d
b547804ebc3fd98bd35ffea608b152871d8387a473ac22fb547836df0085670f
f8cd003e1c03f9239f2c22aba7d67b7597fb65749cd2513307082250023fea12
SH256 hash:
371bf09cb121492c2cda77cfbd4cd346c7871d5c8eff26c5c5f42669a82da044
MD5 hash:
2133404192a27ce7d0169027ed0ee0db
SHA1 hash:
c0b63d3f615b58c04c4e883b57b30fc51027ea30
Link:
https://www.unpac.me/results/f933999e-37b1-4c9d-89f0-3d1f2154e8e4/
SH256 hash:
cfc16a2dbb933b1b85807d48966e9301b9fc34f4c44e7357713ca88b54bf4ab4
MD5 hash:
aabd0bdc81026ade6c57383f21d5c227
SHA1 hash:
4b26936bb8c03be6d7963184215a5ab594ecb765
Link:
https://www.unpac.me/results/f933999e-37b1-4c9d-89f0-3d1f2154e8e4/
SH256 hash:
ab19f28c700d64814b0c55df868c30dfb94e0a1f9fb6f7bca05bac6eb78a4e52
MD5 hash:
1f2a6c02dcf9aa00a28a5039fb5b8ce0
SHA1 hash:
1ef480867d39b98368af7586a8e6ba38c0c3893a
Link:
https://www.unpac.me/results/f933999e-37b1-4c9d-89f0-3d1f2154e8e4/
SH256 hash:
cfb5e1b094d51ae36731d66b346458263b4ee35a7073704bc80ecc14861a7b88
MD5 hash:
0e43eb462dd72dd622add6a74cdb1780
SHA1 hash:
10de5ee804b2b565bc112ee53f365b50606b2ed3
Link:
https://www.unpac.me/results/f933999e-37b1-4c9d-89f0-3d1f2154e8e4/
SH256 hash:
b547804ebc3fd98bd35ffea608b152871d8387a473ac22fb547836df0085670f
MD5 hash:
22eda30b572ee1c13f93a00d2d617d23
SHA1 hash:
e2ebe742bae87efca8021c301af89c7f8d180c13
Link:
https://www.unpac.me/results/f933999e-37b1-4c9d-89f0-3d1f2154e8e4/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b547804ebc3f/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/b547804ebc3fd98bd35ffea608b152871d8387a473ac22fb547836df0085670f

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
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 b547804ebc3fd98bd35ffea608b152871d8387a473ac22fb547836df0085670f

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/335256/

Comments