MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 83ea7959343eed6e0dd2a3c8ac6ef3ad8229cc01c79f911c2cc634ee57f7e2cf. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 83ea7959343eed6e0dd2a3c8ac6ef3ad8229cc01c79f911c2cc634ee57f7e2cf
SHA3-384 hash: 5bc3428f3ab11e5f8ac81e3b37da991f74426df21218b280d2c90701fa200156dd187bfe38904a51d9a555ac5347fbef
SHA1 hash: ce0cffca4b52f48a89845b5c9e4d74a5ac6a3e58
MD5 hash: 5afd05897dc47c4585e8e730c60dad37
humanhash: saturn-cola-princess-rugby
File name:5afd05897dc47c4585e8e730c60dad37.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:444'240 bytes
First seen:2023-01-06 10:02:19 UTC
Last seen:2023-01-06 11:31:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 429 x GuLoader)
ssdeep 12288:IYXvHWpl4xcTwUrcpptM9BioiyBQvwW9P:IY/CexxUmpa9cHy2fl
TLSH T1EF94AE381EADDC58F1C258B85376D781A4ED8816673F7921CB66BE9542F8DC0BE4E203
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 ccb2f0ccf0b2d4e8 (1 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
177
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
5afd05897dc47c4585e8e730c60dad37.exe
Verdict:
Malicious activity
Analysis date:
2023-01-06 10:13:47 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/04014b89-6a70-4b22-8ec5-73a491fe4815

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/349957/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.24.8333.19876.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Searching for synchronization primitives
Reading critical registry keys
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Sending a custom TCP request
DNS request
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63b7f1d9a66e2eb29737cf4b/reports/dac05563-76fc-46db-8ba1-90477d2014a3/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/5b0255dd-77bc-45dd-b84e-bf5fce4a39fb
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1146171
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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
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: 778900 Sample: ZWNQ7W8puK.exe Startdate: 06/01/2023 Architecture: WINDOWS Score: 100 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 3 other signatures 2->55 11 ZWNQ7W8puK.exe 19 2->11         started        process3 file4 35 C:\Users\user\AppData\Local\...\tgfljfej.exe, PE32 11->35 dropped 14 tgfljfej.exe 1 11->14         started        process5 signatures6 65 Multi AV Scanner detection for dropped file 14->65 67 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->67 69 Maps a DLL or memory area into another process 14->69 71 2 other signatures 14->71 17 tgfljfej.exe 14->17         started        20 conhost.exe 14->20         started        process7 signatures8 41 Modifies the context of a thread in another process (thread injection) 17->41 43 Maps a DLL or memory area into another process 17->43 45 Sample uses process hollowing technique 17->45 47 Queues an APC in another process (thread injection) 17->47 22 explorer.exe 17->22 injected process9 dnsIp10 37 www.coveringattorney.com 38.162.74.137, 49720, 80 COGENT-174US United States 22->37 39 www.jayess-decor.com 22->39 57 System process connects to network (likely due to code injection or exploit) 22->57 26 systray.exe 22->26         started        29 autofmt.exe 22->29         started        signatures11 process12 signatures13 59 Modifies the context of a thread in another process (thread injection) 26->59 61 Maps a DLL or memory area into another process 26->61 63 Tries to detect virtualization through RDTSC time measurements 26->63 31 cmd.exe 1 26->31         started        process14 process15 33 conhost.exe 31->33         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/83ea7959343eed6e0dd2a3c8ac6ef3ad8229cc01c79f911c2cc634ee57f7e2cf/
Threat name:
Win32.Trojan.NSISInject
Create hunting rule
Status:
Malicious
First seen:
2023-01-05 17:16:11 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
23 of 39 (58.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qpvhswjuh3ww4dosupeky3xtvwbcttaby6pzchbmyy2o4v7x4lhq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:vr84 rat spyware stealer trojan
Link:
https://tria.ge/reports/230106-l3dc7abc9x/
Behaviour
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
Loads dropped DLL
Executes dropped EXE
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/95370287-68d9-4db9-ab2b-7eaf877d3784
Unpacked files
SH256 hash:
7132f0959b739a251c216e4336f932cf18246fe6ea035aaec2abe3aa05783727
MD5 hash:
8ca73030a86029ba36aaa8834bacfd3f
SHA1 hash:
fa35cf7166ed1d257ac828bba341cadbce80aa97
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/5fcecb49-f58b-40fc-8bb5-f658aec9c920/
Parent samples :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 hash:
a3ffa20841d0447b8abe7ec60cff9b6641559e333971a9eb3cc9223d8c52e6f3
MD5 hash:
be514b004a038c88028650dc1cf41c56
SHA1 hash:
98aff7651116cd4ca4f6f0623b6164a2df9383f8
Link:
https://www.unpac.me/results/5fcecb49-f58b-40fc-8bb5-f658aec9c920/
SH256 hash:
83ea7959343eed6e0dd2a3c8ac6ef3ad8229cc01c79f911c2cc634ee57f7e2cf
MD5 hash:
5afd05897dc47c4585e8e730c60dad37
SHA1 hash:
ce0cffca4b52f48a89845b5c9e4d74a5ac6a3e58
Link:
https://www.unpac.me/results/5fcecb49-f58b-40fc-8bb5-f658aec9c920/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/83ea7959343e/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/83ea7959343eed6e0dd2a3c8ac6ef3ad8229cc01c79f911c2cc634ee57f7e2cf

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
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.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe 83ea7959343eed6e0dd2a3c8ac6ef3ad8229cc01c79f911c2cc634ee57f7e2cf

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2403250/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/349957/

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