MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 83b69ba3e48f2d9d8b9ae995bebb991672a808f47f13fb3a564686a68ddce528. 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 7 File information Comments
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SHA256 hash: 83b69ba3e48f2d9d8b9ae995bebb991672a808f47f13fb3a564686a68ddce528
SHA3-384 hash: 2d9ee1159c973c99a5b0e06a476dc9d6fcaeddc756907d30ed19faf05195c0e6f0b470bf66dda9021254cf7206744833
SHA1 hash: a451330e872f906a51e6ec723c47d91088142adf
MD5 hash: 1e665944358814c7a804f01e4f1d09f2
humanhash: summer-uniform-minnesota-paris
File name:PRE ALERT NOTICE.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:451'614 bytes
First seen:2023-01-19 11:55:34 UTC
Last seen:2023-01-22 18:17:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 6144:uYa6hBo6v9LwIvr2k1TejlOFeKW7Y+TdHpDFOmeRikQoy5//8Djsca1mHr0dxJ:uY3Bo6vN/j2TlzntpsmIikly53QssWJ
Threatray 19'243 similar samples on MalwareBazaar
TLSH T1B5A4C6FDFDC56730D0D06E33F29403FE2989EE334299597AAA583A0521706A1D87ED39
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 e0c4a2a587a6c4e0 (1 x Formbook)
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
190
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
228063c8e40f5cd92.eml
Verdict:
Malicious activity
Analysis date:
2023-01-19 06:44:46 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/86da2fe4-f17e-4e9d-b6be-a7a2f37e6e5c

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/354449/
Detection(s):
SecuriteInfo.com.W32.Injector.ESNU.tr.27661.22723.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
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Reading critical registry keys
Launching the default Windows debugger (dwwin.exe)
DNS request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Query of malicious DNS domain
Stealing user critical data
Unauthorized injection to a system process
Sending an HTTP GET request to an infection source
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/61415/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63c92fd48352dc7065e3cbb1/reports/af5145fa-1eb7-4f20-8412-35f74efaaa4d/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/318b8a2a-8bd5-4b3d-b5f7-2f0c36cb90bf
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1154583
Signature
Antivirus detection for URL or domain
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Initial sample is a PE file and has a suspicious name
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)
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
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 787315 Sample: PRE ALERT NOTICE.exe Startdate: 19/01/2023 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus detection for URL or domain 2->40 42 3 other signatures 2->42 9 PRE ALERT NOTICE.exe 19 2->9         started        process3 file4 26 C:\Users\user\AppData\Local\...\eyeqehx.exe, PE32 9->26 dropped 12 eyeqehx.exe 9->12         started        process5 signatures6 54 Multi AV Scanner detection for dropped file 12->54 56 Detected unpacking (changes PE section rights) 12->56 58 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 12->58 60 2 other signatures 12->60 15 eyeqehx.exe 12->15         started        process7 signatures8 62 Modifies the context of a thread in another process (thread injection) 15->62 64 Maps a DLL or memory area into another process 15->64 66 Sample uses process hollowing technique 15->66 68 Queues an APC in another process (thread injection) 15->68 18 explorer.exe 1 1 15->18 injected process9 dnsIp10 28 www.ombqe.top 154.82.93.7, 80 ROOTNETWORKSUS Seychelles 18->28 30 chaatfunnnet.skin 63.250.38.159, 49702, 80 NAMECHEAP-NETUS United States 18->30 32 7 other IPs or domains 18->32 44 System process connects to network (likely due to code injection or exploit) 18->44 22 svchost.exe 13 18->22         started        signatures11 process12 dnsIp13 34 www.ombqe.top 22->34 46 System process connects to network (likely due to code injection or exploit) 22->46 48 Tries to steal Mail credentials (via file / registry access) 22->48 50 Tries to harvest and steal browser information (history, passwords, etc) 22->50 52 2 other signatures 22->52 signatures14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/83b69ba3e48f2d9d8b9ae995bebb991672a808f47f13fb3a564686a68ddce528/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-01-18 09:41:05 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 25 (80.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qo3jxi7er4wz3c425gk35o4zczzkqchup4j7woswi2dkndo44uua._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
123e747239c973af2c8b7dc8a33b26fdc3cb05f2be8af864290f823daae7d764
Formbook
3a83557cf45393e6008e0a885f79cb7f904f31d8cde2d42c227c1ce41e28b832
Formbook
7a91a1cbaa20e78c0e6814b51ed7d239074c95dd348159817e16606a6a04f344
Formbook
7ae47693c2140e42e5a9ef4a8bea41417ac6090e8bf2d8cd8f8e14ad02a3d275
Formbook
bfc9cf8ef1369ba05191e708fea5b6c71d653dee922f15a53a7aed0642e1b756
Formbook
cef638f9ba310dfd22719a682dfe6ad1a07c06b122b54127e2a6257e9acc7752
Formbook
+ 19'233 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/230119-n316csfg96/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
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
Loads dropped DLL
Executes dropped EXE
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/47b20bb9-f10e-4d42-949a-510e64e48172
Unpacked files
SH256 hash:
b3805ff5295a8a1b6458fd26222fb2cc475dc6959a7396149f9fe4ddce917b0a
MD5 hash:
68ef19e0b4bf790a995bf97e259229f7
SHA1 hash:
8eebda25062ae2aa98af05cec505dd26cfe12373
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/3b14efff-b70e-4c0e-bb78-965e90cbac02/
Parent samples :
123e747239c973af2c8b7dc8a33b26fdc3cb05f2be8af864290f823daae7d764
783dbf002227109a372c999fb01e0a6a542ff273dcb8a10e9080ba8d7466a6e8
81c0682751e0e809dc448f1bf8607a36c95840041de00cccd00032e066c6425e
661f8b0a488009d377e49f6b4779b6e199c32a8d0c5814635ed06d4858bab149
83b69ba3e48f2d9d8b9ae995bebb991672a808f47f13fb3a564686a68ddce528
SH256 hash:
ca083095060a835254d2f05c5d3f6b090679c8230a8e28df6ef9513f838ce742
MD5 hash:
82c6441652f07c706dc064676216c2ce
SHA1 hash:
c71e50e30d778916659b94baa9a6cc283d54e3b4
Link:
https://www.unpac.me/results/3b14efff-b70e-4c0e-bb78-965e90cbac02/
SH256 hash:
04677043e42e3fe92a82c1e984ad857a783bf1e0f182f6c21f5b0707af66d8c0
MD5 hash:
76583efbab818dfd03e5b31328e2a5e6
SHA1 hash:
6358042cbcf0743d87d895c7f4ee1efd0fc55e49
Link:
https://www.unpac.me/results/3b14efff-b70e-4c0e-bb78-965e90cbac02/
SH256 hash:
83b69ba3e48f2d9d8b9ae995bebb991672a808f47f13fb3a564686a68ddce528
MD5 hash:
1e665944358814c7a804f01e4f1d09f2
SHA1 hash:
a451330e872f906a51e6ec723c47d91088142adf
Link:
https://www.unpac.me/results/3b14efff-b70e-4c0e-bb78-965e90cbac02/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/83b69ba3e48f/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/83b69ba3e48f2d9d8b9ae995bebb991672a808f47f13fb3a564686a68ddce528

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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.

Malspam

Formbook

zip 31722f3d1a54598132219b75acaf55170a94a67f26fea53e087c9845a3747380

Formbook

Executable exe 83b69ba3e48f2d9d8b9ae995bebb991672a808f47f13fb3a564686a68ddce528

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 31722f3d1a54598132219b75acaf55170a94a67f26fea53e087c9845a3747380
Cape
Cape
https://www.capesandbox.com/analysis/354449/
  
Dropped by
MD5 5da34ef10fd8b1c3299296cf07b28b22

Comments