MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 661f8b0a488009d377e49f6b4779b6e199c32a8d0c5814635ed06d4858bab149. 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 6 File information Comments
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SHA256 hash: 661f8b0a488009d377e49f6b4779b6e199c32a8d0c5814635ed06d4858bab149
SHA3-384 hash: 4611fe61c5f73cbb974bf7a555440a6d361dbe1f37cc0b6ede9b53d13abfe7a589e8dab15d367ab1ad2b35f31d880f67
SHA1 hash: f7f063f819391e31a7cdf8222ce4fad5721c9c61
MD5 hash: 178473d8f2e2881b651efc6de9b5158d
humanhash: vegan-autumn-thirteen-pluto
File name:DRAFT HAWB and DRAFT MAWB.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:523'284 bytes
First seen:2023-01-16 10:18:09 UTC
Last seen:2023-01-16 11:41:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 12288:KYcHWR2lq0FqUrV5W2+7iQAl7VNhp5kCKj:KYcHWR2Y0nx5W2+7i7xV/HkCy
TLSH T135B4D0513B58CA07E3D072B88FA0E37A9B30AE8C296587076BF16D5FB97D7875C48211
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 60f0b26273f2f070 (1 x Formbook)
Reporter 0xToxin
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
190
Origin country :
IL IL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
DRAFT HAWB and DRAFT MAWB.exe
Verdict:
Malicious activity
Analysis date:
2023-01-16 10:18:55 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/bbcb56f5-a3c2-4d50-ad1f-d55ce80df0e8

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/353372/
Detection(s):
SecuriteInfo.com.FileRepMalware.17063.21382.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
Launching a process
Sending a custom TCP request
Reading critical registry keys
DNS request
Searching for synchronization primitives
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/60649/overview
Behaviour
MalwareBazaar
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63c5249994a4bc9900861a2e/reports/dea8f0b5-6b1e-4a2a-b9d7-3fa82d77f360/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4c6738e2-ad60-46ed-9174-48ac31fafe18
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1152292
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)
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 dnsIp2 2 Behavior Graph ID: 785024 Sample: DRAFT HAWB and DRAFT MAWB.exe Startdate: 16/01/2023 Architecture: WINDOWS Score: 100 29 www.koyesses.makeup 2->29 47 Snort IDS alert for network traffic 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 2 other signatures 2->53 10 DRAFT HAWB and DRAFT MAWB.exe 19 2->10         started        signatures3 process4 file5 27 C:\Users\user\AppData\Local\...\kbxxnrxd.exe, PE32 10->27 dropped 13 kbxxnrxd.exe 10->13         started        process6 signatures7 65 Multi AV Scanner detection for dropped file 13->65 67 Detected unpacking (changes PE section rights) 13->67 69 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 13->69 71 2 other signatures 13->71 16 kbxxnrxd.exe 13->16         started        process8 signatures9 39 Modifies the context of a thread in another process (thread injection) 16->39 41 Maps a DLL or memory area into another process 16->41 43 Sample uses process hollowing technique 16->43 45 Queues an APC in another process (thread injection) 16->45 19 explorer.exe 1 16->19 injected process10 dnsIp11 31 www.ombqe.top 154.82.93.7, 80 ROOTNETWORKSUS Seychelles 19->31 33 chaatfunnnet.skin 63.250.38.159, 49701, 80 NAMECHEAP-NETUS United States 19->33 35 5 other IPs or domains 19->35 55 System process connects to network (likely due to code injection or exploit) 19->55 23 explorer.exe 13 19->23         started        signatures12 process13 dnsIp14 37 www.ombqe.top 23->37 57 System process connects to network (likely due to code injection or exploit) 23->57 59 Tries to steal Mail credentials (via file / registry access) 23->59 61 Tries to harvest and steal browser information (history, passwords, etc) 23->61 63 2 other signatures 23->63 signatures15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/661f8b0a488009d377e49f6b4779b6e199c32a8d0c5814635ed06d4858bab149/
Threat name:
Win32.Trojan.Tnega
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Status:
Malicious
First seen:
2023-01-16 08:01:12 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
21 of 25 (84.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mypywcsiqae5g57et5vuo6nw4gm4gkunbrmbiy262bwuqwf2wfeq._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/230116-mch2eshd5w/
Behaviour
Gathers network information
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
Unpacked files
SH256 hash:
b3805ff5295a8a1b6458fd26222fb2cc475dc6959a7396149f9fe4ddce917b0a
MD5 hash:
68ef19e0b4bf790a995bf97e259229f7
SHA1 hash:
8eebda25062ae2aa98af05cec505dd26cfe12373
Detections:
win_formbook_auto
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win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/71f74183-6353-4ba5-9f36-3fed58e61457/
Parent samples :
123e747239c973af2c8b7dc8a33b26fdc3cb05f2be8af864290f823daae7d764
783dbf002227109a372c999fb01e0a6a542ff273dcb8a10e9080ba8d7466a6e8
81c0682751e0e809dc448f1bf8607a36c95840041de00cccd00032e066c6425e
661f8b0a488009d377e49f6b4779b6e199c32a8d0c5814635ed06d4858bab149
83b69ba3e48f2d9d8b9ae995bebb991672a808f47f13fb3a564686a68ddce528
SH256 hash:
ca083095060a835254d2f05c5d3f6b090679c8230a8e28df6ef9513f838ce742
MD5 hash:
82c6441652f07c706dc064676216c2ce
SHA1 hash:
c71e50e30d778916659b94baa9a6cc283d54e3b4
Link:
https://www.unpac.me/results/71f74183-6353-4ba5-9f36-3fed58e61457/
SH256 hash:
71ded299fe9d2bc82776648654da355e058060b8d4a323f8382b230048c401d4
MD5 hash:
6b4c101b1a2a1a650c21757f8be28d47
SHA1 hash:
f0b0aaafdeaa916af776bd691f95bd270cf35c47
Link:
https://www.unpac.me/results/71f74183-6353-4ba5-9f36-3fed58e61457/
SH256 hash:
661f8b0a488009d377e49f6b4779b6e199c32a8d0c5814635ed06d4858bab149
MD5 hash:
178473d8f2e2881b651efc6de9b5158d
SHA1 hash:
f7f063f819391e31a7cdf8222ce4fad5721c9c61
Link:
https://www.unpac.me/results/71f74183-6353-4ba5-9f36-3fed58e61457/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/661f8b0a4880/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/661f8b0a488009d377e49f6b4779b6e199c32a8d0c5814635ed06d4858bab149

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/353372/

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