MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 838053d3c2a1423831cad1dc9b8ca3f036328c05d2cb5c81fbb18dda832aad54. 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: 18


Intelligence 18 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 838053d3c2a1423831cad1dc9b8ca3f036328c05d2cb5c81fbb18dda832aad54
SHA3-384 hash: 14e22ffb511c02158e6a7fa4b9c91ac5f0b9f8c98e708081640d14b91166aeaba7ca4c3e858b363895add376c4934955
SHA1 hash: 54084910a2c7ca660b644dece24e04130fa4d227
MD5 hash: ceed99d84eed3e759728b9eeea0be0c7
humanhash: nevada-potato-floor-fourteen
File name:DBG1475766.pdf.scr
Download: download sample
Signature Formbook
Create hunting rule
File size:682'496 bytes
First seen:2024-09-09 06:56:09 UTC
Last seen:2024-09-09 11:40:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:XGD8U5frL49pJE2e0ij/btr6YoJ3dk5mYBoD9Qah3irjC9i72lMW:m8U5fg9fE/0ijhrZojksBQqirjCkEMW
Threatray 1'756 similar samples on MalwareBazaar
TLSH T177E4022D6D649800EA698738C672D2B107793E9EB122C30B8EDF7CE3741B2656D54F93
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)
Magika pebin
File icon (PE):PE icon
dhash icon 3b330f2b2b9c8e8e (1 x Formbook, 1 x AgentTesla)
Reporter Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
465
Origin country :
US US
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
DBG1475766.pdf.scr
Verdict:
Malicious activity
Analysis date:
2024-09-09 06:58:24 UTC
Tags:
stealer evasion smtp exfiltration agenttesla
Link:
https://app.any.run/tasks/035a19e3-8d5d-4168-9672-c968b729aaf8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.CrypterX-gen.3850.39.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66de9c40fccb5d469de0d09a
Tags:
Discovery Execution Generic Infostealer Network Static Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a file in the %temp% directory
Creating a process with a hidden window
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Reading critical registry keys
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade overlay packed
Link:
https://www.filescan.io/uploads/66de9c3f4a2597249d52c578/reports/cdedd116-fd95-4233-b1d7-9ccfc934523b/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/838053d3c2a1423831cad1dc9b8ca3f036328c05d2cb5c81fbb18dda832aad54
Result
Verdict:
UNKNOWN
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/1552333a-c3fc-4c70-845c-a187661f8b4b
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1507756
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Contains functionality to register a low level keyboard hook
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1507756 Sample: DBG1475766.pdf.scr.exe Startdate: 09/09/2024 Architecture: WINDOWS Score: 100 42 mail.alitextile.com 2->42 44 ip-api.com 2->44 46 api.ipify.org 2->46 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Sigma detected: Scheduled temp file as task from temp location 2->58 60 12 other signatures 2->60 8 DBG1475766.pdf.scr.exe 7 2->8         started        12 uZmdtYZy.exe 5 2->12         started        signatures3 process4 file5 34 C:\Users\user\AppData\Roaming\uZmdtYZy.exe, PE32 8->34 dropped 36 C:\Users\...\uZmdtYZy.exe:Zone.Identifier, ASCII 8->36 dropped 38 C:\Users\user\AppData\Local\...\tmpDDAE.tmp, XML 8->38 dropped 40 C:\Users\user\...\DBG1475766.pdf.scr.exe.log, ASCII 8->40 dropped 62 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->62 64 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->64 66 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->66 72 5 other signatures 8->72 14 DBG1475766.pdf.scr.exe 15 2 8->14         started        18 powershell.exe 23 8->18         started        20 schtasks.exe 1 8->20         started        68 Multi AV Scanner detection for dropped file 12->68 70 Machine Learning detection for dropped file 12->70 22 uZmdtYZy.exe 12->22         started        24 schtasks.exe 1 12->24         started        signatures6 process7 dnsIp8 48 mail.alitextile.com 192.185.143.105, 49709, 49714, 49723 UNIFIEDLAYER-AS-1US United States 14->48 50 ip-api.com 208.95.112.1, 49708, 49713, 80 TUT-ASUS United States 14->50 52 api.ipify.org 172.67.74.152, 443, 49706, 49712 CLOUDFLARENETUS United States 14->52 74 Installs a global keyboard hook 14->74 76 Loading BitLocker PowerShell Module 18->76 26 WmiPrvSE.exe 18->26         started        28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        78 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->78 80 Tries to steal Mail credentials (via file / registry access) 22->80 82 Tries to harvest and steal browser information (history, passwords, etc) 22->82 32 conhost.exe 24->32         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/838053d3c2a1423831cad1dc9b8ca3f036328c05d2cb5c81fbb18dda832aad54
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/838053d3c2a1423831cad1dc9b8ca3f036328c05d2cb5c81fbb18dda832aad54/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-09-09 06:57:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qoafhu6cufbdqmok2hojxdfd6a3dfdaf2lfvzap3wgg5vazkvvka._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
19a8acd3ad747a875b5823a461251d9daffd73044e56ebbc022b733ba1cc7a6e
Formbook
392ca32b824545d39bea534e97d75361b9d87fd00df675d8133b52ec4f3cfb88
Formbook
b5ffff8fdab42759b2f61b0c3ed3f175d89412f95535f40cc162d1064ea9e79d
Formbook
b70065cfa09b2db420f89631e95a49daf021760dda72d34b5d57c232ac4fb48d
Formbook
fd80ef0c4a88f9aa002cb779a52d56a5b0bbaf1061fc2885fc35559ec3d16907
Formbook
+ 1'746 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla credential_access discovery execution keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240909-hqx1aayekc/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Reads WinSCP keys stored on the system
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
Credentials from Password Stores: Credentials from Web Browsers
AgentTesla
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/23491821-f7a2-4291-ab9d-d41400e9ac0c
Unpacked files
SH256 hash:
6ad0d349a6ab9de0a2fb745159809fc5ed414d0d8361d5f542e1ab6672e22ab9
MD5 hash:
391aef50e8d9724103a135a5fdb24ef5
SHA1 hash:
4648ebe8a048ed99476931d134e9d7c80ab9ad58
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
Agenttesla_type2
Create hunting rule
Link:
https://www.unpac.me/results/b5aec277-4b98-410a-8a3f-e3269ce065a0/
Parent samples :
5474194c07b4f0b5144069d189cd55adfd2e9e8e89bbbdba6153e173a094ff42
838053d3c2a1423831cad1dc9b8ca3f036328c05d2cb5c81fbb18dda832aad54
58e4540c1c53bc7bdcaa26de63fdff31ac8b6db3746c11aa20d0267e8bf83108
e7adf7da5581b485f51456a91295676db483d48f4e842f7a69ff8c6d87dc8d55
f207f360f60925ba6e949a315ac35e01ef7190993146fdad3aa1d27b2c9bb776
SH256 hash:
44bc6c0838fbd701ad65532dacaea817782e9ffacdd2efa53f58da23df0d7baf
MD5 hash:
472b80ac6cfb77bffe8b5e1764e26a8f
SHA1 hash:
0c12b087e518826e38b211e164f043fe4e906422
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/b5aec277-4b98-410a-8a3f-e3269ce065a0/
SH256 hash:
c59a72e874640d2d2c5669edc14fdeb82a72cbacde61679907d2926b8ed79d08
MD5 hash:
b37fc99b846edbde0d0f36bee1760849
SHA1 hash:
0016396b048dcbda5b87742c32678f706db6362c
Link:
https://www.unpac.me/results/b5aec277-4b98-410a-8a3f-e3269ce065a0/
SH256 hash:
838053d3c2a1423831cad1dc9b8ca3f036328c05d2cb5c81fbb18dda832aad54
MD5 hash:
ceed99d84eed3e759728b9eeea0be0c7
SHA1 hash:
54084910a2c7ca660b644dece24e04130fa4d227
Link:
https://www.unpac.me/results/b5aec277-4b98-410a-8a3f-e3269ce065a0/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/838053d3c2a1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/838053d3c2a1423831cad1dc9b8ca3f036328c05d2cb5c81fbb18dda832aad54

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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