MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b478ff97e82ba8a98a92a5d3bd42c23e73aa8507a6f9943e5aac5edbb092b0c4. 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 16 File information Comments
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SHA256 hash: b478ff97e82ba8a98a92a5d3bd42c23e73aa8507a6f9943e5aac5edbb092b0c4
SHA3-384 hash: 8d0cb58fc08e29c334b13957e34b03b22a3b1f7e9245ff427e4e2a2ae517e5d5db316d2603331c7ee0d0f1c2dbcd9576
SHA1 hash: d9e7c98cdffd52fd779ba4eb7b71382d36635af9
MD5 hash: 3d8c54bb1e30ac85fb2e4de947704215
humanhash: iowa-july-pennsylvania-charlie
File name:SecuriteInfo.com.Win32.InjectorX-gen.6979.19171
Download: download sample
Signature Formbook
Create hunting rule
File size:779'776 bytes
First seen:2024-02-01 06:23:16 UTC
Last seen:2024-02-01 11:53:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:NNPrd53rD22qi0sw9+6B2V0T/hcJKycoy+Dz9qeLvmXBM5k6x1OfdVTBtVZ0bF+Z:Nx3rDIhr+6B1T/dycJEVvmXBMZx1OFVl
TLSH T139F4125413AD0F52DA7D97F53020A1984BF2B96EA921D39E1EC8F0DD1622F51CB12FA3
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 13333b33333b3b23 (11 x AgentTesla, 5 x Formbook, 2 x SnakeKeylogger)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
279
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
b478ff97e82ba8a98a92a5d3bd42c23e73aa8507a6f9943e5aac5edbb092b0c4.exe
Verdict:
Malicious activity
Analysis date:
2024-02-01 06:24:48 UTC
Tags:
evasion stealer agenttesla
Link:
https://app.any.run/tasks/4e012bcf-eb24-458a-a8d1-26824780e57c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/473907/
Detection(s):
SecuriteInfo.com.Win32.InjectorX-gen.6979.19171.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd explorer hook keylogger lolbin packed regedit
Link:
https://www.filescan.io/uploads/65bb3903f9733b1319aecc1f/reports/e0574091-c85e-4937-a526-6684e6593c28/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b478ff97e82ba8a98a92a5d3bd42c23e73aa8507a6f9943e5aac5edbb092b0c4
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f07dec36-5775-4fca-a329-afa2114fcd5d
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1384554
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
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
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 domain / URL
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: 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 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
Writes to foreign memory regions
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: 1384554 Sample: SecuriteInfo.com.Win32.Inje... Startdate: 01/02/2024 Architecture: WINDOWS Score: 100 44 mail.wasstech.com 2->44 46 ip-api.com 2->46 48 2 other IPs or domains 2->48 56 Multi AV Scanner detection for domain / URL 2->56 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 15 other signatures 2->62 8 SecuriteInfo.com.Win32.InjectorX-gen.6979.19171.exe 7 2->8         started        12 bnLbdvIOcn.exe 5 2->12         started        signatures3 process4 file5 40 C:\Users\user\AppData\...\bnLbdvIOcn.exe, PE32 8->40 dropped 42 C:\Users\user\AppData\Local\...\tmpA112.tmp, XML 8->42 dropped 64 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->64 66 Uses schtasks.exe or at.exe to add and modify task schedules 8->66 68 Writes to foreign memory regions 8->68 76 3 other signatures 8->76 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        70 Antivirus detection for dropped file 12->70 72 Multi AV Scanner detection for dropped file 12->72 74 Machine Learning detection for dropped file 12->74 24 RegSvcs.exe 12->24         started        26 schtasks.exe 12->26         started        28 RegSvcs.exe 12->28         started        signatures6 process7 dnsIp8 50 mail.wasstech.com 204.93.196.181, 49710, 49715, 587 SERVERCENTRALUS United States 14->50 52 api4.ipify.org 173.231.16.76, 443, 49707, 49713 WEBNXUS United States 14->52 54 ip-api.com 208.95.112.1, 49709, 49714, 80 TUT-ASUS United States 14->54 78 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->78 80 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->80 82 Tries to steal Mail credentials (via file / registry access) 14->82 84 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 14->84 30 conhost.exe 18->30         started        32 WmiPrvSE.exe 18->32         started        34 conhost.exe 20->34         started        36 conhost.exe 22->36         started        86 Tries to harvest and steal browser information (history, passwords, etc) 24->86 38 conhost.exe 26->38         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b478ff97e82ba8a98a92a5d3bd42c23e73aa8507a6f9943e5aac5edbb092b0c4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b478ff97e82ba8a98a92a5d3bd42c23e73aa8507a6f9943e5aac5edbb092b0c4/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-02-01 04:00:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
20 of 24 (83.33%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wr4p7f7ifouktcusuxj32qwchzz2vbihu34zips2vrpnxmeswdca._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240201-g52fksfbbl/
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
AgentTesla
Unpacked files
SH256 hash:
d2cf3273461ffa1b29715828f358368312ae4f08a731f4e449a44f6dc50e26c5
MD5 hash:
df7936d5ea0c80f3003b445c7f8deb44
SHA1 hash:
b995b22e77a11cda256e84a01ccadb85451460ed
Link:
https://www.unpac.me/results/01e16ab2-3d7c-472c-a77c-7641c37860a0/
SH256 hash:
a91462e9c8e5d78d4047a80eb89a38c6e76e5d4cf6ac8ff7142e19bb7ecfbb82
MD5 hash:
b3200a8295f2098fa0078754ab6728ce
SHA1 hash:
b84d3cbebfd2eb9822664ca47fe56e6ee95e0ddc
Link:
https://www.unpac.me/results/01e16ab2-3d7c-472c-a77c-7641c37860a0/
SH256 hash:
2309ca2e97279ca5982fd9cbf4094d4651e5f829e4a7e09d32057a91f5467751
MD5 hash:
57e13036909b37e7d2b996067070f513
SHA1 hash:
b6b4789bbf85cdd2623c4cc90277a4f7de9d0554
Link:
https://www.unpac.me/results/01e16ab2-3d7c-472c-a77c-7641c37860a0/
SH256 hash:
3014b859be7cafca84f61ab3398e0832d80175d76dc6ff4a45df7b2fef39dcaf
MD5 hash:
17cbde8bc5d57e164c1daa95d1b37d0b
SHA1 hash:
4856da540fd30d018fa511c9ce705871e1e2affa
Link:
https://www.unpac.me/results/01e16ab2-3d7c-472c-a77c-7641c37860a0/
SH256 hash:
49d0077d2284dfc268051e3ee5a7922c9ae9a711c835f16d2ff50f2fcb8c3e37
MD5 hash:
ef55d2aea2322c4bb08d3f1871c39ba2
SHA1 hash:
00440a750c36dca3b9160c1274ded978543b681e
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/01e16ab2-3d7c-472c-a77c-7641c37860a0/
Parent samples :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 hash:
b478ff97e82ba8a98a92a5d3bd42c23e73aa8507a6f9943e5aac5edbb092b0c4
MD5 hash:
3d8c54bb1e30ac85fb2e4de947704215
SHA1 hash:
d9e7c98cdffd52fd779ba4eb7b71382d36635af9
Link:
https://www.unpac.me/results/01e16ab2-3d7c-472c-a77c-7641c37860a0/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b478ff97e82b/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/b478ff97e82ba8a98a92a5d3bd42c23e73aa8507a6f9943e5aac5edbb092b0c4

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/473907/

Comments