MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8f86841c7f89a8fe2995492a8bb71e09bed896c812126a4c0f8bb72c146ab4ae. 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: 13


Intelligence 13 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8f86841c7f89a8fe2995492a8bb71e09bed896c812126a4c0f8bb72c146ab4ae
SHA3-384 hash: e4fb16a56d76e969443bdf33aca298c922f8a7b7340530d7a87cd1721ab5407f2380e47f0d2ef1d023f28a00f5f2d738
SHA1 hash: 8dcc25233394468dcd532968dc5d95cb2a15c9f4
MD5 hash: 294bf0d1879c052cbe36fe21b14b0d82
humanhash: delaware-white-california-lithium
File name:Documentación Solicitada.PDF.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:387'506 bytes
First seen:2023-10-23 09:16:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f4639a0b3116c2cfc71144b88a929cfd (96 x GuLoader, 53 x Formbook, 37 x VIPKeylogger)
ssdeep 6144:pXFKo5lVWVWdauaK8liP0hhTUXt4ej2/osbZ/sD3NPr5JdcXpkfH+/EWF8zT/h3m:pXRBauaKxP0hhw4ej2fe5g+H+/Mh3ojn
Threatray 12 similar samples on MalwareBazaar
TLSH T13E84230673F9CC77E7B406724E769FCB26A0E549562D968F53201A38F953F42E84C38A
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 b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
324
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Documentación Solicitada.PDF.exe
Verdict:
Malicious activity
Analysis date:
2023-10-23 09:22:30 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/8d1417f1-0364-48de-adb2-ba0f8908cde3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Inject4.62424.6931.4947.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control installer lolbin masquerade overlay packed shell32
Link:
https://www.filescan.io/uploads/65363a10e3768e7905c73e79/reports/fdc561e2-c936-4d30-80a4-b37d6bb4678e/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/8f86841c7f89a8fe2995492a8bb71e09bed896c812126a4c0f8bb72c146ab4ae
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/4433eb68-ddec-4615-88b7-cdec040150db
Result
Threat name:
NSISDropper
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1330431
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample has a suspicious name (potential lure to open the executable)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1330431 Sample: Documentaci#U00f3n_Solicita... Startdate: 23/10/2023 Architecture: WINDOWS Score: 100 32 www.mindshareevents.com 2->32 34 www.jantanslot.xyz 2->34 36 9 other IPs or domains 2->36 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for URL or domain 2->48 50 Antivirus / Scanner detection for submitted sample 2->50 52 7 other signatures 2->52 11 Documentaci#U00f3n_Solicitada.PDF.exe 17 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\Local\Temp\ydxcab.exe, PE32 11->30 dropped 14 ydxcab.exe 11->14         started        process6 signatures7 62 Multi AV Scanner detection for dropped file 14->62 64 Detected unpacking (changes PE section rights) 14->64 66 Machine Learning detection for dropped file 14->66 68 2 other signatures 14->68 17 ydxcab.exe 14->17         started        process8 signatures9 44 Maps a DLL or memory area into another process 17->44 20 IYRQVevmHfbSMHQed.exe 17->20 injected process10 process11 22 UserAccountControlSettings.exe 13 20->22         started        signatures12 54 Tries to steal Mail credentials (via file / registry access) 22->54 56 Tries to harvest and steal browser information (history, passwords, etc) 22->56 58 Writes to foreign memory regions 22->58 60 3 other signatures 22->60 25 IYRQVevmHfbSMHQed.exe 22->25 injected 28 firefox.exe 22->28         started        process13 dnsIp14 38 parkingpage.namecheap.com 91.195.240.19, 49726, 49727, 49728 SEDO-ASDE Germany 25->38 40 www.icantoes.com 63.141.242.43, 49716, 80 NOCIXUS United States 25->40 42 6 other IPs or domains 25->42
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8f86841c7f89a8fe2995492a8bb71e09bed896c812126a4c0f8bb72c146ab4ae
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8f86841c7f89a8fe2995492a8bb71e09bed896c812126a4c0f8bb72c146ab4ae/
Threat name:
Win32.Trojan.Strab
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Status:
Malicious
First seen:
2023-10-11 09:56:58 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
22 of 23 (95.65%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r6diihd7rgup4kmvjevixny6bg7nrfwicijgutapro3syfdkwsxa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
197619791b979892a3f7a7cabb4314b10b360c67442a2b4f101cef42f6b0f412
Formbook
6168bfdf30f058beb000e91b1ccdb8e264318f8e311f186245b16b8217787c9d
Formbook
7475dc716905ee9a57aa78bdb02c71c1d22d93c67326ac2eedb0b72ca82207b0
Formbook
8f05551c8ddd819665aef513ec44d4f0d3f905fe9d8eca05e2d7857606f132f4
Formbook
c1aa65f7c2cc6beb7052c8ada46a3139fc01da66890f4153a7c5761292b71d61
Formbook
d79a768e106b5c09d20e48704aeb15f5accea32c5e05d1693ff26f0d3a45374d
Formbook
f6ee3a24e7d397b2568fcee9ed1bcd4b69ae3afd7ccc9d6a4e8cdf8e3a47ddb0
Formbook
+ 2 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/231023-k816rsfc9w/
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 UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
a42f1b4392411bde9384d45e8dc227204294f1201c612647a15eca7695c71fd8
MD5 hash:
999878047b49526c27b2583acbd7c46a
SHA1 hash:
ec9fbba92e68b4a74b5b55faf0cc09b35c0cae35
Link:
https://www.unpac.me/results/98a09ba6-1593-4d5e-b778-b26cb40f2528/
SH256 hash:
c09251b0fcb2e19bcb13f06928788f96e934ba4618b97b65b169ffb322a2fec4
MD5 hash:
a2ee0eedebb89ec4cebb750c910f4550
SHA1 hash:
8479050bc1a31129ac2bb58043c6e910f87ccc2f
Link:
https://www.unpac.me/results/98a09ba6-1593-4d5e-b778-b26cb40f2528/
SH256 hash:
bede24b3c23e33d83fbec544b60d9af05d0f61fce9aa1b4e0daac0b7d7e0d038
MD5 hash:
5bd7c850c3da50aaaee88b81589dc082
SHA1 hash:
e96f6b629b11006a727aeca4026a590e0c4956a7
Link:
https://www.unpac.me/results/98a09ba6-1593-4d5e-b778-b26cb40f2528/
SH256 hash:
8f86841c7f89a8fe2995492a8bb71e09bed896c812126a4c0f8bb72c146ab4ae
MD5 hash:
294bf0d1879c052cbe36fe21b14b0d82
SHA1 hash:
8dcc25233394468dcd532968dc5d95cb2a15c9f4
Link:
https://www.unpac.me/results/98a09ba6-1593-4d5e-b778-b26cb40f2528/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8f86841c7f89/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:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
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_w0
Create hunting rule
Author:@malgamy12

File information

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

Malspam

Formbook

rar 8997a327b786a9000b8ef5241dfd7e61a92112f9f9bc62d96924a6f11fdb31b2

Formbook

Executable exe 8f86841c7f89a8fe2995492a8bb71e09bed896c812126a4c0f8bb72c146ab4ae

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 8997a327b786a9000b8ef5241dfd7e61a92112f9f9bc62d96924a6f11fdb31b2
  
Dropped by
MD5 b037a52db0bce54f8271a5d56b610d7f

Comments