MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 10b43fb2634085b6ab64fc9f92be8727a8b0162eb74341297a23f9bdbd89ecd1. 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 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 10b43fb2634085b6ab64fc9f92be8727a8b0162eb74341297a23f9bdbd89ecd1
SHA3-384 hash: 79a8ed1c31be9e3a91298fae0bb474ce24c8a9f9a88b86a7a3d3eee7f708514c190eae910df72a10d2b9a42dbe2a713b
SHA1 hash: eecaa6e3e9952dd83b2339e3c13b6afc9dd08915
MD5 hash: 324fe7bb0bd7a9cf1ed6eec67a5b5a36
humanhash: echo-cardinal-romeo-berlin
File name:rBOQof21MCRANEBOAT.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:701'440 bytes
First seen:2024-01-08 21:07:18 UTC
Last seen:2024-01-09 00:42:57 UTC
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:/rj5rr61t7rUJfi+YwuYN0PdGj20nV96F3veGayla:/rj5rK7gdieuIdjx8/
TLSH T120E4120232E88B16EA7B57FA167051140BB57A5B76B2D74E4DC220CF0E32F94C616BE7
TrID 59.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.6% (.SCR) Windows screen saver (13097/50/3)
8.5% (.EXE) Win64 Executable (generic) (10523/12/4)
5.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter FXOLabs
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
402
Origin country :
BR BR
Vendor Threat Intelligence
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/469944/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin packed
Link:
https://www.filescan.io/uploads/659c64363c61cd5b424d7938/reports/ffe93074-3841-420a-bacd-e2e961a06871/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/10b43fb2634085b6ab64fc9f92be8727a8b0162eb74341297a23f9bdbd89ecd1
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/0f8c9676-99e7-4604-a54f-a30c87bc6494
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1371489
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/10b43fb2634085b6ab64fc9f92be8727a8b0162eb74341297a23f9bdbd89ecd1
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/10b43fb2634085b6ab64fc9f92be8727a8b0162eb74341297a23f9bdbd89ecd1/
Threat name:
Win32.Trojan.GenSteal
Create hunting rule
Status:
Malicious
First seen:
2024-01-08 03:07:52 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
19 of 37 (51.35%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=cc2d7mtdicc3nk3e7spzfpuhe6ulafrow5buckl2ep433pmj5tiq._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/240108-zyvzbsbeej/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
AgentTesla
Unpacked files
SH256 hash:
21afe82a0b71ee589c26f32dc88e0a6e22817f21194b2a83f1807c6cecc8c818
MD5 hash:
440bb4db146ccb1161ac2bcf365d7676
SHA1 hash:
506eda511b46df6e95d86861e70fda81307f8623
Link:
https://www.unpac.me/results/0361ab0c-820d-4f4e-9e42-0d4843596416/
SH256 hash:
7f3ef4658a1b5cff1d0964a68f69d36821f8eacb079cd2f43d007897eb7ab0cb
MD5 hash:
3801a4e3937b0b8ab1f2cd8ca16e478c
SHA1 hash:
31bb63eff712380866c11e5591756df45f9965d7
Link:
https://www.unpac.me/results/0361ab0c-820d-4f4e-9e42-0d4843596416/
SH256 hash:
86368e87a9c6544ef86496b3798653f8a3f9571ebe0839af32205cd25e7b150c
MD5 hash:
27d3af17563ae34787284cbd235f5d2d
SHA1 hash:
315e0cfa87fff7b03f696ef4131964e5354d4989
Link:
https://www.unpac.me/results/0361ab0c-820d-4f4e-9e42-0d4843596416/
SH256 hash:
8d214f64cd3546c138eb5485089869a067a359e4a290e963965e85d3025e94a3
MD5 hash:
8858c988c12498ad7bedcfb3397c7dda
SHA1 hash:
1a09b0d34e2a80d4e3c72eed3d16e17e6e437120
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
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INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/0361ab0c-820d-4f4e-9e42-0d4843596416/
Parent samples :
10b43fb2634085b6ab64fc9f92be8727a8b0162eb74341297a23f9bdbd89ecd1
d828c33f3480155b1115184b721e44c7a42a8026752ffc28a593e3c2284ac716
e3d86b13d59fefeca390e1f69940e370b3188fbdc80604d1869af9b16b4646f8
558122a88015bea8cc58d92d22e752167ccf7d837d8d85a3070497471660de3a
SH256 hash:
10b43fb2634085b6ab64fc9f92be8727a8b0162eb74341297a23f9bdbd89ecd1
MD5 hash:
324fe7bb0bd7a9cf1ed6eec67a5b5a36
SHA1 hash:
eecaa6e3e9952dd83b2339e3c13b6afc9dd08915
Link:
https://www.unpac.me/results/0361ab0c-820d-4f4e-9e42-0d4843596416/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/10b43fb26340/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/10b43fb2634085b6ab64fc9f92be8727a8b0162eb74341297a23f9bdbd89ecd1

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

File information

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

Malspam

Formbook

Executable exe 10b43fb2634085b6ab64fc9f92be8727a8b0162eb74341297a23f9bdbd89ecd1

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/469944/

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