MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 560599c1881e83810ac62f086df752008a76f1a955482404a233c3bef95ce2bb. 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 18 File information Comments
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SHA256 hash: 560599c1881e83810ac62f086df752008a76f1a955482404a233c3bef95ce2bb
SHA3-384 hash: 7fed72b3516334b46f3dc369f61c248c370272b691e94a07c3ab39a2b69b52e617092eabbcdaf7b349ebe71c13fc6722
SHA1 hash: 184c57de04910b6586f1c0bc3a2117b54c445906
MD5 hash: 0afd87473f1180fed209e111b12f4033
humanhash: november-cat-network-bacon
File name:F0 50654.pdf.exe
Download: download sample
Signature Formbook
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File size:758'784 bytes
First seen:2024-01-18 07:40:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:+m1em18KgjjN2iN+X6mzbMfcZuTJcIGVXWqAt3GUgG5eypIzxMG1aGkdQoinCdnW:+mlLgjjN1UznkKXfAbUE211oqnv
TLSH T1CDF401A1F2582F82D92B93FE5960A02017FAB79B540ED3492EF375CB14B17C30256E5B
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) (4505/5/1)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
340
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
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ID:
1
File name:
560599c1881e83810ac62f086df752008a76f1a955482404a233c3bef95ce2bb.exe
Verdict:
Malicious activity
Analysis date:
2024-01-18 07:45:48 UTC
Tags:
evasion agenttesla stealer
Link:
https://app.any.run/tasks/1dce2aa1-6843-48aa-95be-447917831541

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/471427/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
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Porcupine.Malware.58887.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
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 process with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Sending a custom TCP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/65a8d5d499da41ccd7d70fff/reports/5e320a06-d7e1-4794-af75-0839a1b52eb4/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/560599c1881e83810ac62f086df752008a76f1a955482404a233c3bef95ce2bb
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d7d803da-2fe1-43e1-8dee-9984245ca24a
Result
Threat name:
AgentTesla
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1376552
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
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)
Found malware configuration
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 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: 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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1376552 Sample: F0_50654.pdf.exe Startdate: 18/01/2024 Architecture: WINDOWS Score: 100 53 mail.guestequipment.com.au 2->53 55 ip-api.com 2->55 57 guestequipment.com.au 2->57 63 Found malware configuration 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 Sigma detected: Scheduled temp file as task from temp location 2->67 69 11 other signatures 2->69 8 F0_50654.pdf.exe 7 2->8         started        12 xybIsZvyUwu.exe 5 2->12         started        14 newfile.exe 2->14         started        16 newfile.exe 2->16         started        signatures3 process4 file5 49 C:\Users\user\AppData\...\xybIsZvyUwu.exe, PE32 8->49 dropped 51 C:\Users\user\AppData\Local\...\tmp4893.tmp, XML 8->51 dropped 85 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->85 87 Uses schtasks.exe or at.exe to add and modify task schedules 8->87 89 Writes to foreign memory regions 8->89 91 Adds a directory exclusion to Windows Defender 8->91 18 RegSvcs.exe 16 4 8->18         started        23 RegSvcs.exe 8->23         started        25 powershell.exe 23 8->25         started        37 2 other processes 8->37 93 Multi AV Scanner detection for dropped file 12->93 95 Machine Learning detection for dropped file 12->95 97 Injects a PE file into a foreign processes 12->97 27 RegSvcs.exe 3 12->27         started        29 schtasks.exe 1 12->29         started        31 RegSvcs.exe 12->31         started        33 conhost.exe 14->33         started        35 conhost.exe 16->35         started        signatures6 process7 dnsIp8 59 ip-api.com 208.95.112.1, 49708, 49712, 80 TUT-ASUS United States 18->59 61 guestequipment.com.au 27.54.88.193, 26, 49709, 49713 DREAMSCAPE-AS-APDreamscapeNetworksLimitedAU Australia 18->61 47 C:\Users\user\AppData\Roaming\...\newfile.exe, PE32 18->47 dropped 71 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->71 73 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 23->73 75 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 23->75 77 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 23->77 39 WmiPrvSE.exe 25->39         started        41 conhost.exe 25->41         started        79 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 27->79 81 Tries to steal Mail credentials (via file / registry access) 27->81 83 Tries to harvest and steal browser information (history, passwords, etc) 27->83 43 conhost.exe 29->43         started        45 conhost.exe 37->45         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/560599c1881e83810ac62f086df752008a76f1a955482404a233c3bef95ce2bb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/560599c1881e83810ac62f086df752008a76f1a955482404a233c3bef95ce2bb/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
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Status:
Malicious
First seen:
2024-01-18 07:26:37 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kycztqmid2byccwgf4eg352sacfhn4njkvecibfcgpb356k44k5q._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
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Result
Malware family:
agenttesla
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Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240118-jhjclafhf2/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
7ee8698ed416fbf2845c64ce118b9faddd53b1e40b9c1b57dd7f7bb6b73a1f3a
MD5 hash:
b2162aca170718f51b1427d4476c25a0
SHA1 hash:
9f0234897c17012afd492efb3e7908242317e274
Link:
https://www.unpac.me/results/570ede4b-19bf-4327-843d-30b03e148f83/
SH256 hash:
16063ecc89ad89cef1a2fab1c33b429510ad659a332d32d2c788d0ea6277b5b3
MD5 hash:
e27d1b306e0f5d3551eeb41cb69be926
SHA1 hash:
7ac4afbf6079c64449444d4e1a3601640a5e46f8
Detections:
AgentTesla
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win_agent_tesla_g2
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INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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Agenttesla_type2
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INDICATOR_SUSPICIOUS_Binary_References_Browsers
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INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
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INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
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INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
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INDICATOR_EXE_Packed_GEN01
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INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
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Link:
https://www.unpac.me/results/570ede4b-19bf-4327-843d-30b03e148f83/
Parent samples :
560599c1881e83810ac62f086df752008a76f1a955482404a233c3bef95ce2bb
16063ecc89ad89cef1a2fab1c33b429510ad659a332d32d2c788d0ea6277b5b3
SH256 hash:
2e28166cfd7ca169f653563a6b9c5acbf0116492cf29b270400609f8ceab2d4e
MD5 hash:
4b962b9f0d54ac21c772429a04168e94
SHA1 hash:
3b5f4f0e9607de3a080d0383acf2bc413d65ef54
Detections:
INDICATOR_EXE_Packed_SmartAssembly
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Link:
https://www.unpac.me/results/570ede4b-19bf-4327-843d-30b03e148f83/
Parent samples :
560599c1881e83810ac62f086df752008a76f1a955482404a233c3bef95ce2bb
299fa2601344081d80079815643aad1bc5ac812031048754be53a3917308af1e
e12e13ba7f27bcf1f0e5d6bf86304f650e1204b85403e9c9c3ff4b99d843604c
SH256 hash:
aad5bfbb1ddc1e1e61a9bd8fd81dc629e775a16f1c9fe0458ffa89124af8d80e
MD5 hash:
c525fbe0ee1fc8d400dde70848e60325
SHA1 hash:
14a6e8f6e96541e3bf998dbcf86fc54b224d617b
Link:
https://www.unpac.me/results/570ede4b-19bf-4327-843d-30b03e148f83/
SH256 hash:
560599c1881e83810ac62f086df752008a76f1a955482404a233c3bef95ce2bb
MD5 hash:
0afd87473f1180fed209e111b12f4033
SHA1 hash:
184c57de04910b6586f1c0bc3a2117b54c445906
Link:
https://www.unpac.me/results/570ede4b-19bf-4327-843d-30b03e148f83/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/560599c1881e/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/560599c1881e83810ac62f086df752008a76f1a955482404a233c3bef95ce2bb

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:AgentTeslaV3
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Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:DebuggerCheck__RemoteAPI
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
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Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
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Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
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Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
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Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
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Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
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Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
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Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:Multifamily_RAT_Detection
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Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
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Author:malware-lu
Rule name:NETexecutableMicrosoft
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Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security

File information

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

Malspam

Formbook

Executable exe 560599c1881e83810ac62f086df752008a76f1a955482404a233c3bef95ce2bb

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/471427/

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