MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4bc1924f2454b1fea340c0baab9b64a5f6304d1e24445f80177da5fe1a05fdfa. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
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SHA256 hash: 4bc1924f2454b1fea340c0baab9b64a5f6304d1e24445f80177da5fe1a05fdfa
SHA3-384 hash: 1e0d0becf8296ec5cedfada5b2e473dc6d6d82ed1fa61ad3abcb5535c66088f0bfc96ca203ea5071801900da13ea136b
SHA1 hash: 55cd5d84936ce45b2d7145dc4123d0603df590f9
MD5 hash: c61597b1331da17d99c10fe05c89ed87
humanhash: item-item-colorado-cold
File name:SecuriteInfo.com.MalwareX-gen.2535.28087
Download: download sample
Signature Formbook
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File size:742'400 bytes
First seen:2024-02-01 20:30:24 UTC
Last seen:Never
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:Nd53rD22dPD258t4kXBfXcodpg5lNrSqLi5kN1Gonlu6JT4jDWhvmKYdFOl/xeKX:hrDHL22t4ytXchlNvi5kN1Gonlu6R2DA
TLSH T165F41256EAB3C723E4D20ABCD733B6F8C2206D25E930D557178D7E8F7679266C910282
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) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
282
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
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ID:
1
File name:
4bc1924f2454b1fea340c0baab9b64a5f6304d1e24445f80177da5fe1a05fdfa.exe
Verdict:
Malicious activity
Analysis date:
2024-02-01 20:35:40 UTC
Tags:
evasion stealer agenttesla
Link:
https://app.any.run/tasks/cdb69611-a9bc-4c63-bcf7-de733b02c3ec

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/474100/
Detection(s):
SecuriteInfo.com.MalwareX-gen.2535.28087.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65bbff8b4f733f8cc1bc9d56/reports/c4037fbc-1ee4-495d-bfb6-39ebaea3f0de/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4bc1924f2454b1fea340c0baab9b64a5f6304d1e24445f80177da5fe1a05fdfa
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/973099f3-fdf1-4eba-96d9-1e3aaccf50c0
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/1385177
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)
Found malware configuration
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)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
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 schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected PureLog Stealer
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1385177 Sample: SecuriteInfo.com.MalwareX-g... Startdate: 01/02/2024 Architecture: WINDOWS Score: 100 38 api.telegram.org 2->38 40 ip-api.com 2->40 46 Snort IDS alert for network traffic 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 54 14 other signatures 2->54 8 SecuriteInfo.com.MalwareX-gen.2535.28087.exe 7 2->8         started        12 PdYFhkkdZp.exe 5 2->12         started        signatures3 52 Uses the Telegram API (likely for C&C communication) 38->52 process4 file5 34 C:\Users\user\AppData\...\PdYFhkkdZp.exe, PE32 8->34 dropped 36 C:\Users\user\AppData\Local\...\tmpCEF6.tmp, XML 8->36 dropped 56 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->56 58 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->58 60 Uses schtasks.exe or at.exe to add and modify task schedules 8->60 68 3 other signatures 8->68 14 SecuriteInfo.com.MalwareX-gen.2535.28087.exe 15 2 8->14         started        18 powershell.exe 22 8->18         started        20 schtasks.exe 1 8->20         started        62 Antivirus detection for dropped file 12->62 64 Multi AV Scanner detection for dropped file 12->64 66 Machine Learning detection for dropped file 12->66 22 PdYFhkkdZp.exe 14 2 12->22         started        24 schtasks.exe 1 12->24         started        signatures6 process7 dnsIp8 42 ip-api.com 208.95.112.1, 49707, 49711, 80 TUT-ASUS United States 14->42 44 api.telegram.org 149.154.167.220, 443, 49708, 49712 TELEGRAMRU United Kingdom 14->44 26 WmiPrvSE.exe 18->26         started        28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        70 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->70 72 Tries to steal Mail credentials (via file / registry access) 22->72 74 Tries to harvest and steal browser information (history, passwords, etc) 22->74 32 conhost.exe 24->32         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4bc1924f2454b1fea340c0baab9b64a5f6304d1e24445f80177da5fe1a05fdfa
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4bc1924f2454b1fea340c0baab9b64a5f6304d1e24445f80177da5fe1a05fdfa/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2024-02-01 15:00:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
15 of 23 (65.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jpazetzeksy75i2ayc5kxg3eux3dati6ercf7aaxpws74gqf7x5a._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/240201-zapgmsfhfn/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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
Malware Config
C2 Extraction:
https://api.telegram.org/bot6449842746:AAH1JUQ2Q5gmTWbMu0YfLR-2V7Z16tz7TzY/
Unpacked files
SH256 hash:
d2cf3273461ffa1b29715828f358368312ae4f08a731f4e449a44f6dc50e26c5
MD5 hash:
df7936d5ea0c80f3003b445c7f8deb44
SHA1 hash:
b995b22e77a11cda256e84a01ccadb85451460ed
Link:
https://www.unpac.me/results/42044284-77d2-4e11-a372-f52967ead3eb/
SH256 hash:
a91462e9c8e5d78d4047a80eb89a38c6e76e5d4cf6ac8ff7142e19bb7ecfbb82
MD5 hash:
b3200a8295f2098fa0078754ab6728ce
SHA1 hash:
b84d3cbebfd2eb9822664ca47fe56e6ee95e0ddc
Link:
https://www.unpac.me/results/42044284-77d2-4e11-a372-f52967ead3eb/
SH256 hash:
cb73fe11fc4021e0df58c8475bf570e389237650dd0cccae34ae9e2ebf87b0ec
MD5 hash:
bcda86630acf1d43dfe90c70dfd5711a
SHA1 hash:
9d2727841de681461377892cda98bb5c1e1ad42f
Detections:
win_agent_tesla_g2
Create hunting rule
Link:
https://www.unpac.me/results/42044284-77d2-4e11-a372-f52967ead3eb/
Parent samples :
4bc1924f2454b1fea340c0baab9b64a5f6304d1e24445f80177da5fe1a05fdfa
ba6ca59893666207fcc985056f408e08b82a09e6938a746edb2e769dc47d6ba7
SH256 hash:
03c7504d127dd4b80a73e1ea1a6465a70a7d8ce601358fd6dce7d51bd0320889
MD5 hash:
469a3cb35de894c99b8da4d3f624a09f
SHA1 hash:
8ee3bbb4d50b092f6ce9fd8d64c72d3e609bec28
Link:
https://www.unpac.me/results/42044284-77d2-4e11-a372-f52967ead3eb/
SH256 hash:
3014b859be7cafca84f61ab3398e0832d80175d76dc6ff4a45df7b2fef39dcaf
MD5 hash:
17cbde8bc5d57e164c1daa95d1b37d0b
SHA1 hash:
4856da540fd30d018fa511c9ce705871e1e2affa
Link:
https://www.unpac.me/results/42044284-77d2-4e11-a372-f52967ead3eb/
SH256 hash:
4bc1924f2454b1fea340c0baab9b64a5f6304d1e24445f80177da5fe1a05fdfa
MD5 hash:
c61597b1331da17d99c10fe05c89ed87
SHA1 hash:
55cd5d84936ce45b2d7145dc4123d0603df590f9
Link:
https://www.unpac.me/results/42044284-77d2-4e11-a372-f52967ead3eb/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4bc1924f2454/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/4bc1924f2454b1fea340c0baab9b64a5f6304d1e24445f80177da5fe1a05fdfa

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/474100/

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