MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 03fb638724597e20f6102deff728cdd8265eecc3f08e54e373c304b4c0718c42. 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


AgentTesla


Vendor detections: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 03fb638724597e20f6102deff728cdd8265eecc3f08e54e373c304b4c0718c42
SHA3-384 hash: a0a769269031cbec59ea0d05ea4070ee66ea78cf60c9155e1c96ec51d21f18f41a5a3bc02320cb10739d9e1a803128ae
SHA1 hash: 60f9c4ccb4c22314a38ebed7e5c10318e0a0ede8
MD5 hash: 69a36194c762a5ef462575f71b9ba0f3
humanhash: enemy-video-north-magazine
File name:Proformal invoice.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:701'952 bytes
First seen:2022-05-11 10:33:21 UTC
Last seen:2022-05-16 09:17:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:S2DpOpNObzwJuO488T6L1ylqLaXpfj71/f9VGXLLZXmyoFbEccHpo8CJ5p:JDovOb0ABRT6L1oimpL71/POFF8QHvCj
Threatray 16'995 similar samples on MalwareBazaar
TLSH T1F2E40218BAE6EE12D1BE0F37C5F5505107B9BF197533E31F2AC4110EAA12B930A467A7
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.3% (.SCR) Windows screen saver (13101/52/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon e0d2e25945ba9cf0 (15 x AgentTesla, 9 x Formbook, 7 x Loki)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
279
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/269657/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed
Link:
https://www.filescan.io/uploads/627b90fc91db101969cc4a33/reports/7e146e40-d267-4514-836b-33ea6cec0652/overview
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/35e99747-b350-4222-a1f6-de0dde80dd35
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/991761
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
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
Malicious sample detected (through community Yara rule)
Moves itself to temp directory
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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 ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, 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 AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 624257 Sample: Proformal invoice.exe Startdate: 11/05/2022 Architecture: WINDOWS Score: 100 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 Yara detected AgentTesla 2->62 64 9 other signatures 2->64 7 Proformal invoice.exe 7 2->7         started        11 BGQJU.exe 2->11         started        13 BGQJU.exe 2->13         started        process3 file4 38 C:\Users\user\AppData\...\CBlOuiQakd.exe, PE32 7->38 dropped 40 C:\Users\user\AppData\Local\...\tmp48C9.tmp, XML 7->40 dropped 66 Adds a directory exclusion to Windows Defender 7->66 15 Proformal invoice.exe 2 5 7->15         started        20 powershell.exe 25 7->20         started        22 schtasks.exe 1 7->22         started        68 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->68 70 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 11->70 72 Injects a PE file into a foreign processes 11->72 24 BGQJU.exe 11->24         started        26 schtasks.exe 11->26         started        signatures5 process6 dnsIp7 42 us2.smtp.mailhostbox.com 208.91.198.46, 49751, 587 PUBLIC-DOMAIN-REGISTRYUS United States 15->42 34 C:\Users\user\AppData\Roaming\...\BGQJU.exe, PE32 15->34 dropped 36 C:\Users\user\...\BGQJU.exe:Zone.Identifier, ASCII 15->36 dropped 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->46 48 Moves itself to temp directory 15->48 50 Tries to steal Mail credentials (via file / registry access) 15->50 52 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->52 28 conhost.exe 20->28         started        30 conhost.exe 22->30         started        44 162.222.225.29, 49761, 587 PUBLIC-DOMAIN-REGISTRYUS United States 24->44 54 Tries to harvest and steal ftp login credentials 24->54 56 Tries to harvest and steal browser information (history, passwords, etc) 24->56 32 conhost.exe 26->32         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/03fb638724597e20f6102deff728cdd8265eecc3f08e54e373c304b4c0718c42/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2022-05-11 10:34:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
13 of 26 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ap5whbzelf7cb5qqfxx7okgn3atf53gd6chfjy3tymcljqdrrrba._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
294f474790e387c27574d3786346002d696aa7770f957afc9dce9ab3383a2298
AgentTesla
53276d0a0acc73fb550b5b29cc686c0e646ee69333e803496cac726b337b5515
AgentTesla
8e5ed115b7473306fd41dc1862d463a22e1918369e83a8c2d97bc3498af5f93e
AgentTesla
9c071afc054e8a65329317a6b449e9f4119a5546c2b3a5c2ce9bf2cb1a04a46e
AgentTesla
a69f86945f7f8ef58c13736fe00c632a0bbb38807b9e3f5722e3de01b7ab0464
AgentTesla
bc69363fcef0e7f595585f876b41915ccd50ee5e2efcc27b23f18a905b03f0e5
AgentTesla
c3f5b91bd4a07b58d11c41839a3f00c55767e5529fb205310f2a5581ab5139bd
AgentTesla
+ 16'985 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220511-ml33ysbadq/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
c206122a7336385be557580c114ac0923192f61bc8f77aa58c898135438399f9
MD5 hash:
6c9e813248a01432890c476813d210b8
SHA1 hash:
fd54aa3af58fc3a88cb3fd6753d773cd6c51b7f8
Link:
https://www.unpac.me/results/25d45bbb-d95e-41c9-b431-a0958a1f8cfd/
SH256 hash:
42b56cc970a42d6e5e5eb487a33e2246182970adcd1f4f5d818379eeeb7535ff
MD5 hash:
3dba4307b6cdfe6539683c41848b8e9a
SHA1 hash:
96a270cd460a417f06b3da0a03dbf1b32d75cb3b
Link:
https://www.unpac.me/results/25d45bbb-d95e-41c9-b431-a0958a1f8cfd/
SH256 hash:
4aa5f6f279473d5bd3fbdc3053e85cffbf73015affc57d770d5f03c0ef6393f1
MD5 hash:
de6da4daf8e6acd3133176d2598e42a0
SHA1 hash:
424026d2d28019d3e226f181c2e66208710b0440
Link:
https://www.unpac.me/results/25d45bbb-d95e-41c9-b431-a0958a1f8cfd/
SH256 hash:
3694df36c212e4773798d63e96bd29f9c3d582208b625715cd80f9e5ad806a4c
MD5 hash:
df5d0dfc9c4fca67f349ba1c570a2eab
SHA1 hash:
167775da34fb025550ad32da573f371017fc7a06
Link:
https://www.unpac.me/results/25d45bbb-d95e-41c9-b431-a0958a1f8cfd/
SH256 hash:
03fb638724597e20f6102deff728cdd8265eecc3f08e54e373c304b4c0718c42
MD5 hash:
69a36194c762a5ef462575f71b9ba0f3
SHA1 hash:
60f9c4ccb4c22314a38ebed7e5c10318e0a0ede8
Link:
https://www.unpac.me/results/25d45bbb-d95e-41c9-b431-a0958a1f8cfd/
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/03fb638724597e20f6102deff728cdd8265eecc3f08e54e373c304b4c0718c42

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: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

AgentTesla

Executable exe 03fb638724597e20f6102deff728cdd8265eecc3f08e54e373c304b4c0718c42

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/269657/

Comments