MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4baa8f661ea6d1777e87005c1a5c2a73aae516037084f6318d3a13528f3a812a. 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: 17


Intelligence 17 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4baa8f661ea6d1777e87005c1a5c2a73aae516037084f6318d3a13528f3a812a
SHA3-384 hash: 1b983595c75320c9da2d33c73cfd080b6e9fd0997252c9230be83796fcdda05eee979257bc029676a63efe3d38420d38
SHA1 hash: 9ca0d894243bc5eff36b6430729bd158f1557674
MD5 hash: 9494431449041366a97d15e2f88cc8aa
humanhash: black-robert-jersey-uranus
File name:9494431449041366a97d15e2f88cc8aa.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:762'880 bytes
First seen:2023-07-12 06:55:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:9HJ4aGp7tL+NlMp2y0V2az2Z1XdcbfMcM2hH9nNq7BczAjsUf4uw0yP:Ep5R+2U2Sgb2B9otcuFw0yP
Threatray 1'202 similar samples on MalwareBazaar
TLSH T1B5F4012672BEEB56C6B973FD1518554837F8490DA971F3084C8BA0F71636F440AA0EEB
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
254
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
70e05259e807ed0a8bb8848a6247223e.rtf
Verdict:
Malicious activity
Analysis date:
2023-07-10 12:19:01 UTC
Tags:
exploit cve-2017-11882 loader formbook xloader
Link:
https://app.any.run/tasks/c2d39964-3481-4683-8046-f9902c856d04

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/416458/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.68098386.25159.14803.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Creating a process with a hidden window
Restart of the analyzed sample
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
barys comodo lokibot packed
Link:
https://www.filescan.io/uploads/64ae4e4d58d62e49a2fcd887/reports/f2da4682-a6e8-4c00-982c-3aa9bb998521/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4baa8f661ea6d1777e87005c1a5c2a73aae516037084f6318d3a13528f3a812a
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/cf5f91b0-a9eb-44fd-9245-5f7cc9991e13
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1271459
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 submitted file
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1271459 Sample: VTuS2epMer.exe Startdate: 12/07/2023 Architecture: WINDOWS Score: 100 40 Snort IDS alert for network traffic 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 6 other signatures 2->46 10 VTuS2epMer.exe 4 2->10         started        process3 file4 32 C:\Users\user\AppData\...\VTuS2epMer.exe.log, ASCII 10->32 dropped 56 Adds a directory exclusion to Windows Defender 10->56 58 Tries to detect virtualization through RDTSC time measurements 10->58 14 VTuS2epMer.exe 10->14         started        17 powershell.exe 21 10->17         started        signatures5 process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 19 explorer.exe 2 1 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 34 2816goldfinch.com 15.197.142.173, 49704, 80 TANDEMUS United States 19->34 36 www.stephenplattassociatesllp.com 38.40.235.204, 49705, 80 COGENT-174US United States 19->36 38 2 other IPs or domains 19->38 48 System process connects to network (likely due to code injection or exploit) 19->48 25 systray.exe 19->25         started        signatures10 process11 signatures12 50 Modifies the context of a thread in another process (thread injection) 25->50 52 Maps a DLL or memory area into another process 25->52 54 Tries to detect virtualization through RDTSC time measurements 25->54 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4baa8f661ea6d1777e87005c1a5c2a73aae516037084f6318d3a13528f3a812a/
Threat name:
ByteCode-MSIL.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-07-10 13:14:31 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jovi6zq6u3ixo7uhabobuxbkoovokfqdoccpmmmnhijvfdz2qeva._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
01ce82aafecd77a6ae68ca7b431b152764db8b4a72277bd8eb2ea1fad6460740
Formbook
14ac214aee66557d77577da7211f5fa6476753b38ff8b40738c660a88c8ffd35
Formbook
35e53fdc9e554c33ffa134b23eb74b04b2bc07a2eaca797f4af2e467979eb34d
Formbook
44dd86acbfa3789aec858cc6e64db784622bc6c71e6c32909cfcbcacb743e60a
Formbook
53bb0f293733cadbf6b5704cd0359b61acaa6367eb49268905714492d35ddf81
Formbook
68ba26474bb29bdbc42cfddd75f212eec1ffa22d5c1affc893addce5330f4e11
Formbook
719b031a6eb4fb932f4ddc541bcd119995ea7273f77c9bbe663273401d157513
Formbook
9cbb812478a909df210b43c05756059fd4d35bebadcd555d265cf29d74fadc45
Formbook
ed2689d4f89e5f40f8ddf93839da8b822d008329530090975edb6d0909bee67f
Formbook
fa3a477577604a91938f7650b04d3dfaa1d8ec12578d3bb2618817529c8b5797
Formbook
+ 1'192 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:4hc5 rat spyware stealer trojan
Link:
https://tria.ge/reports/230712-hpsn6sdc71/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
4c73a4b631dd55523e1d0d013e5650d80b12062e5642f8021907199af5376953
MD5 hash:
080cb33bd065324ef8edc668e1992ee2
SHA1 hash:
90439e17c3f0d1f50cafe6d3ff9f2f1ac4c50d88
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/9c13968b-2a79-40d5-b141-614832bd7ab8/
Parent samples :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 hash:
9d6c73e273a966a4ed1d93350392d965792ddf5ad201bfa28b8adcec2e344db5
MD5 hash:
adac60763fcfe4d5f4ad323046e79500
SHA1 hash:
9ced772a90ddec9fffde8c745225ad289f3f087e
Link:
https://www.unpac.me/results/9c13968b-2a79-40d5-b141-614832bd7ab8/
SH256 hash:
3daae544051332ad95fb755c5a16db3e4ffd0ac1c9611776804be2e654bd57af
MD5 hash:
84d36187123bcf70305d41282b772fcd
SHA1 hash:
7b8092b122ffc662dc22e2fd1d983d3991093fd5
Link:
https://www.unpac.me/results/9c13968b-2a79-40d5-b141-614832bd7ab8/
SH256 hash:
3c4df4756fdc3fad1560f9c71352648464113022ca71b6da955b45a85c266b48
MD5 hash:
2ee77d7b7a47b5550f8a19fa8db636a8
SHA1 hash:
47795f63079ce8e1e885628f8365321eb56c43ee
Link:
https://www.unpac.me/results/9c13968b-2a79-40d5-b141-614832bd7ab8/
SH256 hash:
4baa8f661ea6d1777e87005c1a5c2a73aae516037084f6318d3a13528f3a812a
MD5 hash:
9494431449041366a97d15e2f88cc8aa
SHA1 hash:
9ca0d894243bc5eff36b6430729bd158f1557674
Link:
https://www.unpac.me/results/9c13968b-2a79-40d5-b141-614832bd7ab8/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4baa8f661ea6/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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.

Web download

Formbook

Executable exe 4baa8f661ea6d1777e87005c1a5c2a73aae516037084f6318d3a13528f3a812a

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/416458/
  
URLhaus
https://urlhaus.abuse.ch/url/2676484/
  
Delivery method
Distributed via web download

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