MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ec436ac4230b5aee3167ff520d0c1d9e0083749e15d93e5cf2294537816e83a0. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ec436ac4230b5aee3167ff520d0c1d9e0083749e15d93e5cf2294537816e83a0
SHA3-384 hash: 1cb6fc8a022ee7933f508d50c3ed2a81b8a0fd8331b592927654a6f158ceabb066a2f9bc855564df0a57b68291a9012f
SHA1 hash: 67ffdf69dd6db33051dbd392528ab8958fe26e7f
MD5 hash: e0ce17e7b225160b20be973dc5d3d46f
humanhash: nitrogen-lima-sink-ink
File name:Arrival Notice.bat
Download: download sample
Signature Formbook
Create hunting rule
File size:839'680 bytes
First seen:2024-06-06 15:27:13 UTC
Last seen:2024-06-06 16:21:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:9W7C3c6KsAPcrBlmeA3pt8iE5EL/2IgtY+VTtC:9GBorBlmeMptU5RIgtY+VTt
Threatray 449 similar samples on MalwareBazaar
TLSH T13805021623684F86C67583FEE66092605F74706F6032FBE4BDC450EB5E76B0805AEA1F
TrID 61.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.1% (.SCR) Windows screen saver (13097/50/3)
8.9% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 64e4a4a4e4e464a4 (10 x AgentTesla, 8 x Formbook, 1 x Rhadamanthys)
Reporter abuse_ch
Tags:bat exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
327
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ec436ac4230b5aee3167ff520d0c1d9e0083749e15d93e5cf2294537816e83a0.exe
Verdict:
Malicious activity
Analysis date:
2024-06-06 16:51:37 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/6c3b38b4-0dd1-4a9f-8907-3acff1f1d734

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2511.22290.29004.UNOFFICIAL
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/6661d58aea679c2da917f724/reports/5f9b1cf2-a125-466a-bd54-c46c0eaf154f/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/ec436ac4230b5aee3167ff520d0c1d9e0083749e15d93e5cf2294537816e83a0
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bf79c6fc-f820-4efe-92b6-ee80ab800187
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1453240
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
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
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1453240 Sample: Arrival Notice.bat.exe Startdate: 06/06/2024 Architecture: WINDOWS Score: 100 59 www.lenovest.xyz 2->59 61 www.x5hh186z.skin 2->61 63 19 other IPs or domains 2->63 75 Snort IDS alert for network traffic 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 Antivirus detection for URL or domain 2->79 83 12 other signatures 2->83 10 Arrival Notice.bat.exe 7 2->10         started        14 lvNmZPVaCqznPm.exe 5 2->14         started        signatures3 81 Performs DNS queries to domains with low reputation 59->81 process4 file5 51 C:\Users\user\AppData\...\lvNmZPVaCqznPm.exe, PE32 10->51 dropped 53 C:\...\lvNmZPVaCqznPm.exe:Zone.Identifier, ASCII 10->53 dropped 55 C:\Users\user\AppData\Local\...\tmp7A32.tmp, XML 10->55 dropped 57 C:\Users\user\...\Arrival Notice.bat.exe.log, ASCII 10->57 dropped 93 Adds a directory exclusion to Windows Defender 10->93 95 Injects a PE file into a foreign processes 10->95 16 Arrival Notice.bat.exe 10->16         started        19 powershell.exe 23 10->19         started        21 powershell.exe 23 10->21         started        23 schtasks.exe 1 10->23         started        97 Multi AV Scanner detection for dropped file 14->97 99 Machine Learning detection for dropped file 14->99 25 schtasks.exe 1 14->25         started        27 lvNmZPVaCqznPm.exe 14->27         started        signatures6 process7 signatures8 71 Maps a DLL or memory area into another process 16->71 29 GwDHFKXHNPCnbAwA.exe 16->29 injected 73 Loading BitLocker PowerShell Module 19->73 32 WmiPrvSE.exe 19->32         started        34 conhost.exe 19->34         started        36 conhost.exe 21->36         started        38 conhost.exe 23->38         started        40 conhost.exe 25->40         started        process9 signatures10 101 Found direct / indirect Syscall (likely to bypass EDR) 29->101 42 compact.exe 13 29->42         started        process11 signatures12 85 Tries to steal Mail credentials (via file / registry access) 42->85 87 Tries to harvest and steal browser information (history, passwords, etc) 42->87 89 Modifies the context of a thread in another process (thread injection) 42->89 91 2 other signatures 42->91 45 GwDHFKXHNPCnbAwA.exe 42->45 injected 49 firefox.exe 42->49         started        process13 dnsIp14 65 shahaf3d.com 64.46.118.35, 49721, 49722, 49723 SINGLEHOP-LLCUS United States 45->65 67 www.klimkina.pro 185.137.235.192, 49717, 49718, 49719 SELECTELRU Russian Federation 45->67 69 10 other IPs or domains 45->69 103 Found direct / indirect Syscall (likely to bypass EDR) 45->103 signatures15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ec436ac4230b5aee3167ff520d0c1d9e0083749e15d93e5cf2294537816e83a0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ec436ac4230b5aee3167ff520d0c1d9e0083749e15d93e5cf2294537816e83a0/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-06-06 04:05:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
20 of 24 (83.33%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5rbwvrbdbnno4mlh75ja2da5tyaig5e6cxmt4xhsffctpaloqoqa._file
Verdict:
malicious
Similar samples:
1f7dcd5994d22e9acfb0313d58b4227abcd33966ae38863d91fbed5a0cd7b415
Formbook
416de50eb7136a66364744b8712b82405813c4192cdf2764fcbbec07154495d9
Formbook
6112a8912f40f95dfeafa1022b2c9e8e26195e8b36e06136c052c6687bd9816d
Formbook
8db679fe4d6d844ca5e599d8fe6d8daacf115b319634b21b0ec78525a482819f
Formbook
de56c70d9543d35a0f93def14072e42a9df2b35f5b087fac3bfedd49c3f42ee6
Formbook
+ 439 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution
Link:
https://tria.ge/reports/240606-sxvhvagh88/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Unpacked files
SH256 hash:
63dac3a59d0a77ef2c50490df0602032664a113cb80c53cc686649be467e8be2
MD5 hash:
576bcab19ffe826ab1df342dcf621611
SHA1 hash:
aab4da2d28c0fb3254d86102db5e12f151f68d94
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/c065bca4-ce6c-4800-9082-6a3ab67216a4/
Parent samples :
94818e3ff52e10a04fcd1759813020d73907ce10e9f6906ee98fd26c7da13aa3
ec436ac4230b5aee3167ff520d0c1d9e0083749e15d93e5cf2294537816e83a0
fb5431795717f39dfc9c2426af31582b6987a85f66ba3f50cba6fe865589bfd6
SH256 hash:
4c69437931f31ac36c7ca6801e4fa1dd896e525980fe1304994d7b2d4bec21b6
MD5 hash:
fd8b4d583f055880bc1337c9ce773406
SHA1 hash:
ad63e31f72f5b34dd6df74f381d5b41481d8c1c1
Link:
https://www.unpac.me/results/c065bca4-ce6c-4800-9082-6a3ab67216a4/
SH256 hash:
bfc41300d004192a50b55d6a6c6b439d96ab3a4aebe4bebe7861c2d9aab17145
MD5 hash:
3b1532aa14a1706a75d4943e66044474
SHA1 hash:
c1ba66826410f06a00d63f0a447ef26951599931
Link:
https://www.unpac.me/results/c065bca4-ce6c-4800-9082-6a3ab67216a4/
SH256 hash:
1a1de9f3fe4c3a7ea7cd547cdd9d78b3873d6e243e544e5bb647452d6d9f6cfe
MD5 hash:
ceb52a5c98659e8905ea76737fe00c01
SHA1 hash:
bb7b30ff84d6aa26eaa0021c9fa3cd2c5a08e694
Link:
https://www.unpac.me/results/c065bca4-ce6c-4800-9082-6a3ab67216a4/
SH256 hash:
e9319f360d8400e7dd18207e0731d4222b7b88f6aece7641cb960a033dfbe043
MD5 hash:
90af36207084292ebceaf0aa6a1586f7
SHA1 hash:
2583769c47d4203a8263aefeeb72b7194e272d5e
Link:
https://www.unpac.me/results/c065bca4-ce6c-4800-9082-6a3ab67216a4/
SH256 hash:
761bb69c9cef36f1b60166d42f27dccd189e3b5b99ddba2323789024d5f7f06d
MD5 hash:
15668f9d154cef63b4f04fa52b437ed6
SHA1 hash:
df6347a3775d815b2ad225559af3013b9cddb46c
Link:
https://www.unpac.me/results/c065bca4-ce6c-4800-9082-6a3ab67216a4/
SH256 hash:
41ce73cca0fc6dbabe8cbdc0c94c4bf56b234c4d640787b92d3a2c8fb04039d3
MD5 hash:
3f43155ef851348d9259dc752774fb43
SHA1 hash:
a5e5b6cbb35539c43815ca868578001ff03c37f1
Link:
https://www.unpac.me/results/c065bca4-ce6c-4800-9082-6a3ab67216a4/
SH256 hash:
d2e3073b66373590d4e40cdefc2addd52cb90404f74536913d2bc03ea3d4aa46
MD5 hash:
a75142387a71b5ad575bdc14e6342507
SHA1 hash:
7887cead856d83b2d40930280cf7baba9498ad76
Link:
https://www.unpac.me/results/c065bca4-ce6c-4800-9082-6a3ab67216a4/
SH256 hash:
7907fccc0604440e6974952b101cfc1a87cb7dff65a917cd7232aabcf12fa464
MD5 hash:
a71f2e93f5253c565a3f3fcb3f192094
SHA1 hash:
465387c8d92cdbea059a73ab69ff907448c8df13
Link:
https://www.unpac.me/results/c065bca4-ce6c-4800-9082-6a3ab67216a4/
SH256 hash:
0f2d04d8a4041e1add4e6e6977dddc2ea7d483ec657d711ea1d98ab78e726088
MD5 hash:
810bf1283da2bab05b7ac2a28aa713ff
SHA1 hash:
3acccdf4b7c49e5a0a036e4bdb0a7c39e2e2bda6
Link:
https://www.unpac.me/results/c065bca4-ce6c-4800-9082-6a3ab67216a4/
SH256 hash:
1ed996fe1f2a8848f8f48b7d16569b74f18b531f0137e1be58f533a5cf6a349a
MD5 hash:
4aa459224c56a5e58f552c836453e02f
SHA1 hash:
167ed5280cdd71853660401087eac493e8c0eddb
Link:
https://www.unpac.me/results/c065bca4-ce6c-4800-9082-6a3ab67216a4/
SH256 hash:
ec436ac4230b5aee3167ff520d0c1d9e0083749e15d93e5cf2294537816e83a0
MD5 hash:
e0ce17e7b225160b20be973dc5d3d46f
SHA1 hash:
67ffdf69dd6db33051dbd392528ab8958fe26e7f
Link:
https://www.unpac.me/results/c065bca4-ce6c-4800-9082-6a3ab67216a4/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ec436ac4230b/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/ec436ac4230b5aee3167ff520d0c1d9e0083749e15d93e5cf2294537816e83a0

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.

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

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