MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8ceceb731a2c09d552835ade18b92d47e10e24cb34cdb4954b1a97905fd10b29. 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: 11


Intelligence 11 IOCs YARA 12 File information Comments

SHA256 hash: 8ceceb731a2c09d552835ade18b92d47e10e24cb34cdb4954b1a97905fd10b29
SHA3-384 hash: 173fc29d6b105df39c77ec5fa38074f0b1ef19f49f3c1601559045e56a449e40aed0cb4dbc72107f600d26936bfa37b0
SHA1 hash: 95f70125a4cd1a019ef76eb02ebf20e7053175c3
MD5 hash: e1b786b74762bec05c93625a67ca8d46
humanhash: batman-north-table-wyoming
File name:Petronas requesting quotations.exe
Download: download sample
Signature Formbook
File size:367'092 bytes
First seen:2023-09-11 10:12:20 UTC
Last seen:2023-09-11 10:36:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:vYa62rQUGPOl1GrvQ4+lwHkkhHvtZrpUuQg2hhpzdnIePcHs8Haj+e7BO:vYAPGPvol0kkhHlP/QgKhp1IePmal8
Threatray 7 similar samples on MalwareBazaar
TLSH T1A4741339E31AC07AF4D30A723A3E1DD77EE696130C64D39F53702E28B9162849E2D765
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter TeamDreier
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
293
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Petronas requesting quotations.exe
Verdict:
Malicious activity
Analysis date:
2023-09-11 10:13:53 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Sending a custom TCP request
Launching a process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Gathering data
Gathering data
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.
Result
Threat name:
FormBook, NSISDropper
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-09-11 03:20:42 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
8cdb3df77dd43f2200ac71f6b8ac002ae95bd540973c0b945cba77b324967bae
MD5 hash:
995c51682142a1c1a8cccbd37f00a14a
SHA1 hash:
4b82e5ed36c9fabf443ad0cf4f0b20f3a34cd269
SH256 hash:
2f5f79c0bd70983abb11925a4d9a4bebbcd46fb11d3c36b3e82b273e135b4580
MD5 hash:
bbb93ff78388fb6cd4aca0c583d5f5be
SHA1 hash:
0082a8820abdb6ae912c2f833d510cca68a44e6a
SH256 hash:
08dca1fe40ab2566e2e588989015c418c3fe59ff786a55b83bcf13ad27a3a3c7
MD5 hash:
6089207c6d5ac08e67fbfe9f8cdc3815
SHA1 hash:
6d44a8f2da197ae86454d6b1912d9951b200d423
SH256 hash:
8ceceb731a2c09d552835ade18b92d47e10e24cb34cdb4954b1a97905fd10b29
MD5 hash:
e1b786b74762bec05c93625a67ca8d46
SHA1 hash:
95f70125a4cd1a019ef76eb02ebf20e7053175c3
Please note that we are no longer able to provide a coverage score for Virus Total.

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:DebuggerCheck__GlobalFlags
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns

File information


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

Malspam

Formbook

Executable exe 8ceceb731a2c09d552835ade18b92d47e10e24cb34cdb4954b1a97905fd10b29

(this sample)

  
Delivery method
Distributed via e-mail attachment

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