MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 159b534ea3ff22efd020768a9e5bb7d2766cc9d3b0e483bbc74e59009c92aa8f. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 159b534ea3ff22efd020768a9e5bb7d2766cc9d3b0e483bbc74e59009c92aa8f
SHA3-384 hash: 50f8acc9b52f7ccd097e10a9873f654bfcc8c7fb0b9fa4e3c722b0afe3698a451d626ec0c693b634e1fcbeb77cb59bc8
SHA1 hash: fe052bffa2f799a4548f4ccf1b7b106bbc802900
MD5 hash: 0e4890b8807a50f84df18d3632968765
humanhash: alanine-paris-juliet-xray
File name:159b534ea3ff22efd020768a9e5bb7d2766cc9d3b0e483bbc74e59009c92aa8f
Download: download sample
Signature Formbook
Create hunting rule
File size:927'240 bytes
First seen:2025-03-10 11:58:33 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'839 x AgentTesla, 19'772 x Formbook, 12'296 x SnakeKeylogger)
ssdeep 12288:WVgGVmTvYsu6koKRqHbpVO5k8BHdJvivf3KdFodg0VNvCIftu1RYdXmfWwnNHkR:WK8su3q7w8CdFZsNvvc1RYd+S
TLSH T11115EF58D608D5D2FE6172F80960F7B0D6785D9AA40CCA579BF8BFEFB1B1A001E0B146
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
dhash icon b130fcd2d2d830a3 (6 x Formbook, 2 x RemcosRAT, 2 x njrat)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
328
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
159b534ea3ff22efd020768a9e5bb7d2766cc9d3b0e483bbc74e59009c92aa8f
Verdict:
Suspicious activity
Analysis date:
2025-03-10 16:58:27 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/12e069b0-0ab9-4614-9133-651b0e27daa4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67cede4a1f777fe306089cad
Tags:
injection virus shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
invalid-signature obfuscated packed packed packer_detected signed vbnet
Link:
https://www.filescan.io/uploads/67ced4164a3011c802cc243f/reports/c739c9bd-ec0b-4832-9007-ad088ffa7b6e/overview
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/159b534ea3ff22efd020768a9e5bb7d2766cc9d3b0e483bbc74e59009c92aa8f
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/7d492072-62e1-4923-94a2-656a8f102b2d
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1634642
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Suricata IDS alerts 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: 1634642 Sample: oss4CtI8oz.exe Startdate: 11/03/2025 Architecture: WINDOWS Score: 100 46 www.lenzor.xyz 2->46 48 www.ethereumkeeper.xyz 2->48 50 17 other IPs or domains 2->50 60 Suricata IDS alerts for network traffic 2->60 62 Antivirus detection for URL or domain 2->62 64 Antivirus / Scanner detection for submitted sample 2->64 68 6 other signatures 2->68 10 oss4CtI8oz.exe 4 2->10         started        14 svchost.exe 1 1 2->14         started        signatures3 66 Performs DNS queries to domains with low reputation 48->66 process4 dnsIp5 38 C:\Users\user\AppData\...\oss4CtI8oz.exe.log, ASCII 10->38 dropped 72 Writes to foreign memory regions 10->72 74 Allocates memory in foreign processes 10->74 76 Adds a directory exclusion to Windows Defender 10->76 78 Injects a PE file into a foreign processes 10->78 17 RegSvcs.exe 10->17         started        20 powershell.exe 23 10->20         started        52 127.0.0.1 unknown unknown 14->52 file6 signatures7 process8 signatures9 54 Maps a DLL or memory area into another process 17->54 22 DzuG1v7KGGzqI4w.exe 17->22 injected 56 Loading BitLocker PowerShell Module 20->56 25 WmiPrvSE.exe 20->25         started        27 conhost.exe 20->27         started        process10 signatures11 70 Found direct / indirect Syscall (likely to bypass EDR) 22->70 29 finger.exe 13 22->29         started        process12 signatures13 80 Tries to steal Mail credentials (via file / registry access) 29->80 82 Tries to harvest and steal browser information (history, passwords, etc) 29->82 84 Modifies the context of a thread in another process (thread injection) 29->84 86 3 other signatures 29->86 32 DzuG1v7KGGzqI4w.exe 29->32 injected 36 firefox.exe 29->36         started        process14 dnsIp15 40 www.xiongding.tech 111.119.219.195, 50257, 50258, 50259 SIPL-ASSysconInfowayPvtLtdIN India 32->40 42 www.lifce.life 209.74.77.230, 50241, 50242, 50243 MULTIBAND-NEWHOPEUS United States 32->42 44 8 other IPs or domains 32->44 58 Found direct / indirect Syscall (likely to bypass EDR) 32->58 signatures16
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/159b534ea3ff22efd020768a9e5bb7d2766cc9d3b0e483bbc74e59009c92aa8f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/159b534ea3ff22efd020768a9e5bb7d2766cc9d3b0e483bbc74e59009c92aa8f/
Threat name:
ByteCode-MSIL.Trojan.Jalapeno
Create hunting rule
Status:
Malicious
First seen:
2025-02-25 07:58:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
28
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cwnvgtvd74ro7ubao2fj4w5x2j3gzsotwdsiho6hjzmqbhesvkhq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250310-n5xkystxas/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Verdict:
Malicious
Tags:
Win.Malware.Generic-9957321-0
YARA:
n/a
Link:
https://app.threat.zone/submission/46667fd6-781e-451c-babe-e025f031614a
Unpacked files
SH256 hash:
159b534ea3ff22efd020768a9e5bb7d2766cc9d3b0e483bbc74e59009c92aa8f
MD5 hash:
0e4890b8807a50f84df18d3632968765
SHA1 hash:
fe052bffa2f799a4548f4ccf1b7b106bbc802900
Link:
https://www.unpac.me/results/e8c6e5bb-c00a-4898-9194-538584cc35d3/
SH256 hash:
e80a463e16b14b43e4112cb8f0cb0cf44ff245be592202042373a02b9ea4deb9
MD5 hash:
bbea1aafd0d7058f6f46c8ceff355f96
SHA1 hash:
14ca07073c0a943129823d6532358a55761a203f
Link:
https://www.unpac.me/results/e8c6e5bb-c00a-4898-9194-538584cc35d3/
SH256 hash:
9a91d2f53b302dc8f942a150131632fb4f38ba98bcf69f4162ef662a9106440d
MD5 hash:
8a8fe71512e35742ab2bb161f17c4e61
SHA1 hash:
73ec247f5c23e02b16d8d9ab5f1f8d54c854427d
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/e8c6e5bb-c00a-4898-9194-538584cc35d3/
SH256 hash:
4acab68ccafb820c5e10df6d5381552a79d973d47080eadef3656b3e635b1e42
MD5 hash:
d4fb4fe1a86e5169bd119d278ea07355
SHA1 hash:
d257a40b7ad0f481d5d3108378dc3205a8b14d19
Link:
https://www.unpac.me/results/e8c6e5bb-c00a-4898-9194-538584cc35d3/
SH256 hash:
2ca07f76810ac77a51d81e0e76703fe27d0e14cc1b55ed461920edade440b7a9
MD5 hash:
86be32efd51008634d34fbb76c836f52
SHA1 hash:
805ebb11ff31c8481362555c210b32a2035ee044
Link:
https://www.unpac.me/results/e8c6e5bb-c00a-4898-9194-538584cc35d3/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/159b534ea3ff/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/159b534ea3ff22efd020768a9e5bb7d2766cc9d3b0e483bbc74e59009c92aa8f

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

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 (HIGH_ENTROPY_VA)high

Comments