MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dfb857049a7acaa04874ff42bd7539ba6d779a1f59fd49e2f247e7236d244cb9. 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: 17


Intelligence 17 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: dfb857049a7acaa04874ff42bd7539ba6d779a1f59fd49e2f247e7236d244cb9
SHA3-384 hash: d080f2f09a1700550ec85a9e46008cf2529ed2cb86922c40cac406713bb231692009b614c781cb510a190468377b6189
SHA1 hash: 64cee70aeff719eb92afcee6dfce60ffe32ce348
MD5 hash: e45f8da605a7a6742e1ec14351ed6ed8
humanhash: sad-skylark-mockingbird-sodium
File name:rooming list.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:685'568 bytes
First seen:2024-02-13 18:39:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:5eQ5vziOT5spQ64XwwPO0OoJsFldYWTVKxIo6KlCOAC0mZuyw5P:5rie8QDAwW07YYW5KxIo6xOACPuZ
TLSH T1ABE42200BAF9A3A6D9C253F606329420D73E3A5F6D75DA1E1D9523CC4937B028691FB3
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
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) (4504/4/1)
Reporter JAMESWT_WT
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
369
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
dfb857049a7acaa04874ff42bd7539ba6d779a1f59fd49e2f247e7236d244cb9.exe
Verdict:
Malicious activity
Analysis date:
2024-02-13 18:42:33 UTC
Tags:
evasion stealer agenttesla
Link:
https://app.any.run/tasks/184eb5bd-d009-4445-b719-da1e35149617

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/476029/
Detection(s):
Win.Packed.Filerepmalware-10019564-0
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Win.Packed.Msilheracles-10020638-0
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Win.Packed.Agensla-10021078-0
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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
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65cbb78dac375bec15e61440/reports/13d66a9e-a5cc-4572-bf9c-c2252b88e409/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/dfb857049a7acaa04874ff42bd7539ba6d779a1f59fd49e2f247e7236d244cb9
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:
KeyBase
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2fae6c19-dc8f-4308-862e-6dad811c2af4
Result
Threat name:
AgentTesla
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1391638
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Sample uses string decryption to hide its real strings
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
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 steal Mail credentials (via file / registry access)
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: 1391638 Sample: rooming list.exe Startdate: 13/02/2024 Architecture: WINDOWS Score: 100 42 nl10.nlkoddos.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 Antivirus / Scanner detection for submitted sample 2->58 60 15 other signatures 2->60 8 rooming list.exe 7 2->8         started        12 HbdKaRtbio.exe 5 2->12         started        signatures3 process4 file5 38 C:\Users\user\AppData\...\HbdKaRtbio.exe, PE32 8->38 dropped 40 C:\Users\user\AppData\Local\...\tmpACE1.tmp, XML 8->40 dropped 62 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->62 64 Writes to foreign memory regions 8->64 66 Allocates memory in foreign processes 8->66 74 2 other signatures 8->74 14 RegSvcs.exe 15 2 8->14         started        18 powershell.exe 23 8->18         started        20 powershell.exe 23 8->20         started        22 schtasks.exe 1 8->22         started        68 Antivirus detection for dropped file 12->68 70 Multi AV Scanner detection for dropped file 12->70 72 Machine Learning detection for dropped file 12->72 24 RegSvcs.exe 12->24         started        26 schtasks.exe 12->26         started        signatures6 process7 dnsIp8 48 nl10.nlkoddos.com 185.191.124.15, 49736, 49739, 49746 NETLOGIXDE Netherlands 14->48 50 ip-api.com 208.95.112.1, 49734, 49738, 80 TUT-ASUS United States 14->50 52 api.ipify.org 104.26.12.205, 443, 49732, 49737 CLOUDFLARENETUS United States 14->52 76 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->76 78 Tries to steal Mail credentials (via file / registry access) 14->78 80 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 14->80 28 conhost.exe 18->28         started        30 WmiPrvSE.exe 18->30         started        32 conhost.exe 20->32         started        34 conhost.exe 22->34         started        82 Tries to harvest and steal browser information (history, passwords, etc) 24->82 84 Installs a global keyboard hook 24->84 36 conhost.exe 26->36         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/dfb857049a7acaa04874ff42bd7539ba6d779a1f59fd49e2f247e7236d244cb9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/dfb857049a7acaa04874ff42bd7539ba6d779a1f59fd49e2f247e7236d244cb9/
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Create hunting rule
Status:
Malicious
First seen:
2024-02-13 18:39:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
24
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=364fobe2plfkasdu75bl25jzxjwxpgq7lh6utyxsi7tsg3jejs4q._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 spyware stealer trojan
Link:
https://tria.ge/reports/240213-xa7xwafc9y/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
70f3562fb317856deafcee15411f5434d0965b3d6933fb4ef92e39565cd9e0ef
MD5 hash:
3601c8bd999f5dace588a90840de328c
SHA1 hash:
d9c0b2455ec1295bb0ed9137f725f78b42a1e02b
Link:
https://www.unpac.me/results/2fce9921-441b-4a91-982f-c67b528657a8/
SH256 hash:
0c68264370ac9ff98387d73ce3f2c88e187729bfcea0c984cb370d1097cfb2e4
MD5 hash:
47d8ad55cc18078cc513c50fb47d3335
SHA1 hash:
65931a98340c65a7aace74619368dee616b12137
Link:
https://www.unpac.me/results/2fce9921-441b-4a91-982f-c67b528657a8/
SH256 hash:
5b39420fca34b6b179e0e6ec27c6ebd2691862d4f1bf8e67985cbe05eb7f4d2c
MD5 hash:
6aa71cc5acd3f5076d5ca94b063cdb35
SHA1 hash:
1dfdf86493c8d68ebb8d140b1deb5a1b11ef7e50
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/2fce9921-441b-4a91-982f-c67b528657a8/
SH256 hash:
a3b82e2d17f660c450ba4dae95a26b906f12626462a4bb9a6c2833071dd9faf5
MD5 hash:
cf3241f04cc546fa617566e84b5c1793
SHA1 hash:
0b9cbe0c45fba268857e11ad4d71105193c19d02
Link:
https://www.unpac.me/results/2fce9921-441b-4a91-982f-c67b528657a8/
SH256 hash:
dfb857049a7acaa04874ff42bd7539ba6d779a1f59fd49e2f247e7236d244cb9
MD5 hash:
e45f8da605a7a6742e1ec14351ed6ed8
SHA1 hash:
64cee70aeff719eb92afcee6dfce60ffe32ce348
Link:
https://www.unpac.me/results/2fce9921-441b-4a91-982f-c67b528657a8/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/dfb857049a7a/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/dfb857049a7acaa04874ff42bd7539ba6d779a1f59fd49e2f247e7236d244cb9

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
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Author:malware-lu
Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/476029/

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