MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81c0682751e0e809dc448f1bf8607a36c95840041de00cccd00032e066c6425e. 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: 15


Intelligence 15 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81c0682751e0e809dc448f1bf8607a36c95840041de00cccd00032e066c6425e
SHA3-384 hash: 7c363ed980da8ab9c7d70f93f14a385c149747d89fdbdbe6353dff07f8bb25d301b3aecc574135d5465920f4a76abc7e
SHA1 hash: f6445a0a8f3b33f171d291cb5957fdd0201e4c9f
MD5 hash: 16adc1ddc372a6cb7d64700d26edcb72
humanhash: hot-table-uranus-sad
File name:BL-SHIPPING DOCUMENTS.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:457'721 bytes
First seen:2023-01-11 14:26:39 UTC
Last seen:2023-01-12 07:17:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 6144:AYa6RBgLagUpQmFiK40z85vc/AYO7go7dvb9b5:AYx26QVK40zVsgC/
TLSH T164A401403690D597D4E17A345F31D67A17AAEC2A095053432BE47F9F39FE20BE90E3A2
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)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
5
# of downloads :
181
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
BL-SHIPPING DOCUMENTS.exe
Verdict:
Malicious activity
Analysis date:
2023-01-11 14:29:49 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/fff805fe-6c6f-48dc-9cf8-7da923c10523

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/351966/
Detection(s):
Can't access file ERROR
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
Sending a custom TCP request
Reading critical registry keys
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
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63bec7385f356e00329d1cc7/reports/953334f7-9840-432b-a89d-cd717f161352/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/8b26d457-c3c3-40d5-a5e1-1930ea63b063
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1149631
Signature
Antivirus detection for URL or domain
Contains functionality to detect sleep reduction / modifications
Executable has a suspicious name (potential lure to open the executable)
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 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: 782363 Sample: BL-SHIPPING DOCUMENTS.exe Startdate: 11/01/2023 Architecture: WINDOWS Score: 100 33 Snort IDS alert for network traffic 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus detection for URL or domain 2->37 39 4 other signatures 2->39 9 BL-SHIPPING DOCUMENTS.exe 19 2->9         started        process3 file4 25 C:\Users\user\AppData\...\umqultcyhl.exe, PE32 9->25 dropped 12 umqultcyhl.exe 9->12         started        process5 signatures6 51 Maps a DLL or memory area into another process 12->51 53 Contains functionality to detect sleep reduction / modifications 12->53 15 umqultcyhl.exe 12->15         started        process7 signatures8 55 Modifies the context of a thread in another process (thread injection) 15->55 57 Maps a DLL or memory area into another process 15->57 59 Sample uses process hollowing technique 15->59 61 Queues an APC in another process (thread injection) 15->61 18 explorer.exe 15->18 injected process9 dnsIp10 27 www.ombqe.top 154.82.93.7, 49698, 49699, 49700 ROOTNETWORKSUS Seychelles 18->27 29 chaatfunnnet.skin 63.250.38.159, 49697, 80 NAMECHEAP-NETUS United States 18->29 31 6 other IPs or domains 18->31 41 System process connects to network (likely due to code injection or exploit) 18->41 22 help.exe 13 18->22         started        signatures11 process12 signatures13 43 Tries to steal Mail credentials (via file / registry access) 22->43 45 Tries to harvest and steal browser information (history, passwords, etc) 22->45 47 Modifies the context of a thread in another process (thread injection) 22->47 49 Maps a DLL or memory area into another process 22->49
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/81c0682751e0e809dc448f1bf8607a36c95840041de00cccd00032e066c6425e/
Threat name:
Win32.Trojan.Nsisx
Create hunting rule
Status:
Malicious
First seen:
2023-01-11 14:26:04 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
19 of 41 (46.34%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qhagqj2r4duatxcer4n7qyd2g3evqqaedxqaztgqaazoazwgijpa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/230111-rsefdsdc39/
Behaviour
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
Program crash
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/59dcdc32-4279-4694-a1af-ec9261516ec9
Unpacked files
SH256 hash:
b3805ff5295a8a1b6458fd26222fb2cc475dc6959a7396149f9fe4ddce917b0a
MD5 hash:
68ef19e0b4bf790a995bf97e259229f7
SHA1 hash:
8eebda25062ae2aa98af05cec505dd26cfe12373
Detections:
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/572c7668-31b8-4173-8d35-c1826f365731/
Parent samples :
123e747239c973af2c8b7dc8a33b26fdc3cb05f2be8af864290f823daae7d764
783dbf002227109a372c999fb01e0a6a542ff273dcb8a10e9080ba8d7466a6e8
81c0682751e0e809dc448f1bf8607a36c95840041de00cccd00032e066c6425e
661f8b0a488009d377e49f6b4779b6e199c32a8d0c5814635ed06d4858bab149
83b69ba3e48f2d9d8b9ae995bebb991672a808f47f13fb3a564686a68ddce528
SH256 hash:
ca083095060a835254d2f05c5d3f6b090679c8230a8e28df6ef9513f838ce742
MD5 hash:
82c6441652f07c706dc064676216c2ce
SHA1 hash:
c71e50e30d778916659b94baa9a6cc283d54e3b4
Link:
https://www.unpac.me/results/572c7668-31b8-4173-8d35-c1826f365731/
SH256 hash:
7113a26bab066eb9cbecb9313606c81d190ee07caf2e59b3f829b78fc8f8601b
MD5 hash:
cca3fc4b553eea5e2f0c2338271b7bab
SHA1 hash:
27f2c2bd1ae7f5e0f0a6a4ab1755c402c966cfa9
Link:
https://www.unpac.me/results/572c7668-31b8-4173-8d35-c1826f365731/
SH256 hash:
81c0682751e0e809dc448f1bf8607a36c95840041de00cccd00032e066c6425e
MD5 hash:
16adc1ddc372a6cb7d64700d26edcb72
SHA1 hash:
f6445a0a8f3b33f171d291cb5957fdd0201e4c9f
Link:
https://www.unpac.me/results/572c7668-31b8-4173-8d35-c1826f365731/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/81c0682751e0/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/81c0682751e0e809dc448f1bf8607a36c95840041de00cccd00032e066c6425e

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.

Malspam

Formbook

zip 727b7c8e02544f5d401452f2af140aa1f8bbef64363ecba7168650e546ab8f39

Formbook

Executable exe 81c0682751e0e809dc448f1bf8607a36c95840041de00cccd00032e066c6425e

(this sample)

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/351966/
  
Dropped by
SHA256 727b7c8e02544f5d401452f2af140aa1f8bbef64363ecba7168650e546ab8f39
  
Dropped by
MD5 191edb34df085bc89c75b4295ce31815

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