MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 12827eaf4cbb6271dc4e42b0a3bf5f1d5ac0b4fe0476af2a4b9479bc69ba6710. 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: 12


Intelligence 12 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 12827eaf4cbb6271dc4e42b0a3bf5f1d5ac0b4fe0476af2a4b9479bc69ba6710
SHA3-384 hash: 70dc291bf46755c42e92b0c15efaa2d0a94fbde57870514bc68bfb1e7a91aee4d6fdaf6513fceb5de8f4ab7c2dbe61fa
SHA1 hash: f5dea41e55981ee54ba82c3f7b7bd663a7f594b7
MD5 hash: 3f2d2f26603ef3f43394a9402d8252b0
humanhash: orange-emma-coffee-sad
File name:Document.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:596'480 bytes
First seen:2024-07-23 09:50:23 UTC
Last seen:2024-07-23 10:23:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:I0QdLVZEFjmuDxA5GRqWnGjq1FgARGNkX:vQxVSFbS9WnGjqgARA
TLSH T133C48B2E0BC7C510C28C45B5A5E48374DF60EE4E2C42EBD61AC6F6FAB97329674A3453
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 00d9c0ccaca09800 (3 x RemcosRAT, 1 x Formbook)
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
337
Origin country :
DK DK
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.16793.8898.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=669f7d18b302ab76f4486155
Tags:
Generic Malware
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
90%
Tags:
crypter formbook vbnet
Link:
https://www.filescan.io/uploads/669f7d1b7b9add553eda48b2/reports/c07db476-8fe5-45d1-a8ef-6f0ce29dc781/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/12827eaf4cbb6271dc4e42b0a3bf5f1d5ac0b4fe0476af2a4b9479bc69ba6710
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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/660509de-8eed-4e36-990d-4484ddf6435f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1471223
Signature
.NET source code contains method to dynamically call methods (often used by packers)
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Found direct / indirect Syscall (likely to bypass EDR)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Snort IDS alert for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1471223 Sample: Document.exe Startdate: 11/07/2024 Architecture: WINDOWS Score: 100 32 www.ngkwnq.xyz 2->32 34 www.zocalo-fuk.com 2->34 36 16 other IPs or domains 2->36 48 Snort IDS alert for network traffic 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 Antivirus / Scanner detection for submitted sample 2->52 56 7 other signatures 2->56 10 Document.exe 15 3 2->10         started        signatures3 54 Performs DNS queries to domains with low reputation 32->54 process4 dnsIp5 44 imgurl.ir 185.49.85.22, 443, 49730 ASIATECHIR Iran (ISLAMIC Republic Of) 10->44 30 C:\Users\user\AppData\...\Document.exe.log, ASCII 10->30 dropped 68 Writes to foreign memory regions 10->68 70 Hides that the sample has been downloaded from the Internet (zone.identifier) 10->70 72 Injects a PE file into a foreign processes 10->72 15 AddInProcess32.exe 10->15         started        file6 signatures7 process8 signatures9 74 Maps a DLL or memory area into another process 15->74 18 RxKpsfUDnZv.exe 15->18 injected process10 signatures11 46 Found direct / indirect Syscall (likely to bypass EDR) 18->46 21 findstr.exe 13 18->21         started        process12 signatures13 58 Tries to steal Mail credentials (via file / registry access) 21->58 60 Tries to harvest and steal browser information (history, passwords, etc) 21->60 62 Modifies the context of a thread in another process (thread injection) 21->62 64 3 other signatures 21->64 24 RxKpsfUDnZv.exe 21->24 injected 28 firefox.exe 21->28         started        process14 dnsIp15 38 www.tcfreal.top 203.161.50.128, 49752, 49753, 49754 VNPT-AS-VNVNPTCorpVN Malaysia 24->38 40 www.noghteyab.com 51.89.93.192, 49756, 49757, 49758 OVHFR France 24->40 42 7 other IPs or domains 24->42 66 Found direct / indirect Syscall (likely to bypass EDR) 24->66 signatures16
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/12827eaf4cbb6271dc4e42b0a3bf5f1d5ac0b4fe0476af2a4b9479bc69ba6710
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/12827eaf4cbb6271dc4e42b0a3bf5f1d5ac0b4fe0476af2a4b9479bc69ba6710/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-07-10 07:19:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ckbh5l2mxnrhdxcoikykhp27dvnmbnh6ar3k6kslsr43y2n2m4ia._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/240723-lvg2eazgnr/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4393b9a1-7be2-43f7-9c55-c452b5498961
Unpacked files
SH256 hash:
12827eaf4cbb6271dc4e42b0a3bf5f1d5ac0b4fe0476af2a4b9479bc69ba6710
MD5 hash:
3f2d2f26603ef3f43394a9402d8252b0
SHA1 hash:
f5dea41e55981ee54ba82c3f7b7bd663a7f594b7
Link:
https://www.unpac.me/results/f275ef56-1015-45ef-ac3a-822bc4d26589/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/12827eaf4cbb/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/12827eaf4cbb6271dc4e42b0a3bf5f1d5ac0b4fe0476af2a4b9479bc69ba6710

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

Executable exe 12827eaf4cbb6271dc4e42b0a3bf5f1d5ac0b4fe0476af2a4b9479bc69ba6710

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments