MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 658d1072c3f7acceb9e9b582c5ea2ae076e02941d602d71ffe22812a592e78c8. 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 17 File information Comments
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SHA256 hash: 658d1072c3f7acceb9e9b582c5ea2ae076e02941d602d71ffe22812a592e78c8
SHA3-384 hash: f55d9c0b6df6cfc5d6e15c075ac4de02d5f40438936374662b4a9bbc963397640f2238a7dd6e790fb0e7d94bd64eea8a
SHA1 hash: 3b0d2e13b71d1e7777bfe6b5336ca5cf17d5e646
MD5 hash: cd69f2fa31cbf9b93c1596cac2b8f420
humanhash: tennis-mango-twelve-pizza
File name:S24903-SHIPMENT-BL AND COADV-MV PAN VIVA.exe
Download: download sample
Signature Formbook
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File size:750'592 bytes
First seen:2024-02-08 22:42:19 UTC
Last seen:2024-02-12 11:20:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:YNxEd6T3WE1WFpaFyJVWYK/4ujWKFX5UTEmw6SnTMKcZ09NSmis:YNxcg1WFpYyOx/pZFXaRw6SQX+jSmb
TLSH T12DF401417E6DCB26E96E53F4E42002F017717D6AD4E6E22B6EC63CDB3975B401A21E0B
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) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
431
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
agenttesla
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ID:
1
File name:
658d1072c3f7acceb9e9b582c5ea2ae076e02941d602d71ffe22812a592e78c8.exe
Verdict:
Malicious activity
Analysis date:
2024-02-08 22:44:31 UTC
Tags:
evasion stealer agenttesla
Link:
https://app.any.run/tasks/e718f4c2-601e-46ea-9e27-f244cd101658

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/475510/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.46226.31421.289.UNOFFICIAL
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Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/65c558fd2cb3f19023f65418/reports/9e8359cc-b9ba-458f-9d31-438f564e6b0c/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/658d1072c3f7acceb9e9b582c5ea2ae076e02941d602d71ffe22812a592e78c8
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/c69b138a-00dc-4024-be4a-0b91ad2aa073
Result
Threat name:
AgentTesla
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1389494
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 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 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 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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1389494 Sample: S24903-SHIPMENT-BL AND COAD... Startdate: 08/02/2024 Architecture: WINDOWS Score: 100 44 mail.wasstech.com 2->44 46 ip-api.com 2->46 48 api.ipify.org 2->48 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Antivirus detection for URL or domain 2->60 62 15 other signatures 2->62 8 S24903-SHIPMENT-BL AND COADV-MV PAN VIVA.exe 7 2->8         started        12 QvqeVl.exe 5 2->12         started        signatures3 process4 file5 40 C:\Users\user\AppData\Roaming\QvqeVl.exe, PE32 8->40 dropped 42 C:\Users\user\AppData\Local\...\tmpD0A4.tmp, XML 8->42 dropped 64 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->64 66 Writes to foreign memory regions 8->66 68 Allocates memory in foreign processes 8->68 70 Adds a directory exclusion to Windows Defender 8->70 14 RegSvcs.exe 15 2 8->14         started        18 RegSvcs.exe 8->18         started        20 powershell.exe 23 8->20         started        28 2 other processes 8->28 72 Multi AV Scanner detection for dropped file 12->72 74 Machine Learning detection for dropped file 12->74 76 Injects a PE file into a foreign processes 12->76 22 RegSvcs.exe 12->22         started        24 schtasks.exe 12->24         started        26 RegSvcs.exe 12->26         started        signatures6 process7 dnsIp8 50 mail.wasstech.com 204.93.196.181, 49710, 49715, 587 SERVERCENTRALUS United States 14->50 52 ip-api.com 208.95.112.1, 49709, 49714, 80 TUT-ASUS United States 14->52 54 api.ipify.org 172.67.74.152, 443, 49708, 49712 CLOUDFLARENETUS United States 14->54 78 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->78 80 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 18->80 30 conhost.exe 20->30         started        32 WmiPrvSE.exe 20->32         started        82 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->82 84 Tries to steal Mail credentials (via file / registry access) 22->84 86 Tries to harvest and steal browser information (history, passwords, etc) 22->86 34 conhost.exe 24->34         started        36 conhost.exe 28->36         started        38 conhost.exe 28->38         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/658d1072c3f7acceb9e9b582c5ea2ae076e02941d602d71ffe22812a592e78c8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/658d1072c3f7acceb9e9b582c5ea2ae076e02941d602d71ffe22812a592e78c8/
Threat name:
Win32.Trojan.AgentTesla
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Status:
Malicious
First seen:
2024-02-08 07:51:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mwgra4wd66wm5opjwwbml2rk4b3oakkb2ybnoh76ekasuwjopdea._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/240208-2m8gdscc7v/
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:
bc9aea75000b4df46edfb3d86bdfea8da2594f137197981a99483b3d7dc955ec
MD5 hash:
9410acb7d8dc39aeb7dbc17b690764f2
SHA1 hash:
f8e9c7b52de8da497ba6231bc59900b63cdd50a2
Link:
https://www.unpac.me/results/a176c44b-7ad6-4995-9046-28aee04afd6c/
SH256 hash:
95c23f30001a0d59d45ee4c35e8d0c994e06099c640f1dfc22839a8b801d1399
MD5 hash:
21d3e1a093b5747da3029615f8eea9cf
SHA1 hash:
6a729f1a85142f4731cb79d4b509b54142c4f7d6
Link:
https://www.unpac.me/results/a176c44b-7ad6-4995-9046-28aee04afd6c/
SH256 hash:
a3b82e2d17f660c450ba4dae95a26b906f12626462a4bb9a6c2833071dd9faf5
MD5 hash:
cf3241f04cc546fa617566e84b5c1793
SHA1 hash:
0b9cbe0c45fba268857e11ad4d71105193c19d02
Link:
https://www.unpac.me/results/a176c44b-7ad6-4995-9046-28aee04afd6c/
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
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Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
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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
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Link:
https://www.unpac.me/results/a176c44b-7ad6-4995-9046-28aee04afd6c/
Parent samples :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 hash:
658d1072c3f7acceb9e9b582c5ea2ae076e02941d602d71ffe22812a592e78c8
MD5 hash:
cd69f2fa31cbf9b93c1596cac2b8f420
SHA1 hash:
3b0d2e13b71d1e7777bfe6b5336ca5cf17d5e646
Link:
https://www.unpac.me/results/a176c44b-7ad6-4995-9046-28aee04afd6c/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/658d1072c3f7/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/658d1072c3f7acceb9e9b582c5ea2ae076e02941d602d71ffe22812a592e78c8

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
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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
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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
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Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
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Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
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Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
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Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:NET
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Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
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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 658d1072c3f7acceb9e9b582c5ea2ae076e02941d602d71ffe22812a592e78c8

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/475510/

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