MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 be1cfa406d8ed5411a49fb64283c6a120e0c43a31df164acd8de332cdb89f411. 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 17 File information Comments
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SHA256 hash: be1cfa406d8ed5411a49fb64283c6a120e0c43a31df164acd8de332cdb89f411
SHA3-384 hash: 430901905009ff4c2a322289464b01e2bd2a77197fa56ebf2960210f35970308c25a84fa38ca7fce51df5a10700ee6c5
SHA1 hash: 87764cdec781a49b57139a383f3da6c34b52b082
MD5 hash: 1b4196e46a22f9eab189dd5e276f5387
humanhash: kansas-nuts-single-pennsylvania
File name:rNeworder.exe
Download: download sample
Signature Formbook
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File size:711'680 bytes
First seen:2024-02-05 14:15:15 UTC
Last seen:2024-02-05 16:40:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:LaDXoxxI5lAuwGHQO1iMA8EUY2OXTj8euFLoo9IIQ2mHevuDd53rD22k:eDXox2AujQHUUvPuFL3MFeGvrD+
TLSH T14AE4128163EC5B74D6B9C3FA6870108047BA765B7521FA2C1ECDF2C66B94F011AA0B77
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 FXOLabs
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
285
Origin country :
BR BR
Vendor Threat Intelligence
Detection:
AgentTesla
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Link:
https://www.capesandbox.com/analysis/474715/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
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Porcupine.MSIL.Kryptik.AKUV.209275.UNOFFICIAL
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Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/65c0eda81c125702ab396847/reports/fdebd81d-8389-4191-ab1d-37a4058fb0f6/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/be1cfa406d8ed5411a49fb64283c6a120e0c43a31df164acd8de332cdb89f411
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/afc41cc5-db40-464c-a588-be73e1d526b9
Result
Threat name:
AgentTesla, PureLog Stealer
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1386817
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
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)
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
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)
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
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1386817 Sample: rNeworder.exe Startdate: 05/02/2024 Architecture: WINDOWS Score: 100 40 nl10.nlkoddos.com 2->40 42 ip-api.com 2->42 44 api.ipify.org 2->44 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Antivirus / Scanner detection for submitted sample 2->56 58 13 other signatures 2->58 8 rNeworder.exe 7 2->8         started        12 rADwHQSmdGB.exe 5 2->12         started        signatures3 process4 file5 36 C:\Users\user\AppData\...\rADwHQSmdGB.exe, PE32 8->36 dropped 38 C:\Users\user\AppData\Local\...\tmp8936.tmp, XML 8->38 dropped 60 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->60 62 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->62 64 Contains functionality to register a low level keyboard hook 8->64 72 4 other signatures 8->72 14 rNeworder.exe 15 2 8->14         started        18 powershell.exe 22 8->18         started        20 schtasks.exe 1 8->20         started        66 Antivirus detection for dropped file 12->66 68 Multi AV Scanner detection for dropped file 12->68 70 Machine Learning detection for dropped file 12->70 22 rADwHQSmdGB.exe 12->22         started        24 schtasks.exe 1 12->24         started        26 rADwHQSmdGB.exe 12->26         started        signatures6 process7 dnsIp8 46 nl10.nlkoddos.com 185.191.124.15, 49716, 49722, 49733 NETLOGIXDE Netherlands 14->46 48 api.ipify.org 104.237.62.212, 443, 49714, 49719 WEBNXUS United States 14->48 50 ip-api.com 208.95.112.1, 49715, 49721, 80 TUT-ASUS United States 14->50 28 WmiPrvSE.exe 18->28         started        30 conhost.exe 18->30         started        32 conhost.exe 20->32         started        74 Tries to steal Mail credentials (via file / registry access) 22->74 76 Tries to harvest and steal browser information (history, passwords, etc) 22->76 78 Installs a global keyboard hook 22->78 34 conhost.exe 24->34         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/be1cfa406d8ed5411a49fb64283c6a120e0c43a31df164acd8de332cdb89f411
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/be1cfa406d8ed5411a49fb64283c6a120e0c43a31df164acd8de332cdb89f411/
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
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Status:
Malicious
First seen:
2024-02-02 10:31:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xyopuqdnr3kucgsj7nscqpdkcihayq5ddxywjlgy3yzszw4j6qiq._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/240205-rk5bvabehk/
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
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:
ed84b06b23c60cbf3a4fae1ddd21dbb2d425db63f1da0efffd1f7c0973996031
MD5 hash:
8a3eec689853005e52d44982651294e2
SHA1 hash:
e83e8aba7888a33b0ca4f89b12284cf0aef9cedd
Link:
https://www.unpac.me/results/a272b90c-d5db-4bf2-bbd5-2b895a839309/
SH256 hash:
d2cf3273461ffa1b29715828f358368312ae4f08a731f4e449a44f6dc50e26c5
MD5 hash:
df7936d5ea0c80f3003b445c7f8deb44
SHA1 hash:
b995b22e77a11cda256e84a01ccadb85451460ed
Link:
https://www.unpac.me/results/a272b90c-d5db-4bf2-bbd5-2b895a839309/
SH256 hash:
a91462e9c8e5d78d4047a80eb89a38c6e76e5d4cf6ac8ff7142e19bb7ecfbb82
MD5 hash:
b3200a8295f2098fa0078754ab6728ce
SHA1 hash:
b84d3cbebfd2eb9822664ca47fe56e6ee95e0ddc
Link:
https://www.unpac.me/results/a272b90c-d5db-4bf2-bbd5-2b895a839309/
SH256 hash:
6b14ba146e0658b5502111f5d9281594ae32dd3c04a20fa767855b018ee3286c
MD5 hash:
76bc84e717d0cb3b78f29519f5dca90a
SHA1 hash:
935d9396702f2b46aa031e6c9a74d02e9d8f25bd
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
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INDICATOR_EXE_Packed_GEN01
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INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/a272b90c-d5db-4bf2-bbd5-2b895a839309/
Parent samples :
a5c4d15614f27654b3e585bea87310c219fc733a82a59e1cba36be9579bda841
be1cfa406d8ed5411a49fb64283c6a120e0c43a31df164acd8de332cdb89f411
6b1dda532678c811db3b3bc66788bdd3dbcfb260dc9dcea2a1cdb17bbc0b40c5
5f57f52adae6c2bc66134b12af0f88354d3efa874598c8761984bcc71b0995f8
a111c4f71eff009bd6e9bfb327109bcde57864c37c6fdd14d037f35ac859c765
SH256 hash:
3014b859be7cafca84f61ab3398e0832d80175d76dc6ff4a45df7b2fef39dcaf
MD5 hash:
17cbde8bc5d57e164c1daa95d1b37d0b
SHA1 hash:
4856da540fd30d018fa511c9ce705871e1e2affa
Link:
https://www.unpac.me/results/a272b90c-d5db-4bf2-bbd5-2b895a839309/
SH256 hash:
be1cfa406d8ed5411a49fb64283c6a120e0c43a31df164acd8de332cdb89f411
MD5 hash:
1b4196e46a22f9eab189dd5e276f5387
SHA1 hash:
87764cdec781a49b57139a383f3da6c34b52b082
Link:
https://www.unpac.me/results/a272b90c-d5db-4bf2-bbd5-2b895a839309/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/be1cfa406d8e/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/be1cfa406d8ed5411a49fb64283c6a120e0c43a31df164acd8de332cdb89f411

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
Create hunting rule
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
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
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
Create hunting rule
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
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
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
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 be1cfa406d8ed5411a49fb64283c6a120e0c43a31df164acd8de332cdb89f411

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/474715/

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