MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d6514eed7fd7242c429612acedbc29e049b489dbaeabf6ebfc78b3526f267013. 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 6 File information Comments

SHA256 hash: d6514eed7fd7242c429612acedbc29e049b489dbaeabf6ebfc78b3526f267013
SHA3-384 hash: c983bb763f684c9b264831cda94a0e709a05dc759b4e88b84b4fb1b9359595c35fee3bd21749662ce6abfd6997607db6
SHA1 hash: 558e85c25320b7281620299eaa7f01e531aee51c
MD5 hash: f296f7508497af5983d68e76cfa8e957
humanhash: mars-west-quiet-freddie
File name:NJjU88.exe
Download: download sample
Signature Formbook
File size:380'928 bytes
First seen:2024-08-09 06:55:19 UTC
Last seen:2024-08-09 07:28:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:TF+zxgm6IoQlauuOfK/YWCWZosmpgMfvdqYJJoReQ9o7mzr:C4IoQlauaYMWgMXkeQ9zr
Threatray 3 similar samples on MalwareBazaar
TLSH T143841255CD6E8CC3C8ACB9B8546B9F242F52CA239527A9C9215E33274E77386047BD0F
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)
File icon (PE):PE icon
dhash icon 00be8323b233bac0 (79 x AgentTesla, 11 x Loki, 9 x DarkCloud)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
345
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
NJjU88.exe
Verdict:
Malicious activity
Analysis date:
2024-08-09 07:06:32 UTC
Tags:
formbook stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Tags:
Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
confuser confuserex packed packed
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
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Windows Update Standalone Installer command line found (may be used to bypass UAC)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1490423 Sample: NJjU88.exe Startdate: 09/08/2024 Architecture: WINDOWS Score: 100 33 www.yamegoart.com 2->33 35 www.solesense.pro 2->35 37 24 other IPs or domains 2->37 49 Multi AV Scanner detection for domain / URL 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus / Scanner detection for submitted sample 2->53 55 7 other signatures 2->55 10 NJjU88.exe 1 2->10         started        signatures3 process4 file5 31 C:\Users\user\AppData\...31JjU88.exe.log, CSV 10->31 dropped 67 Writes to foreign memory regions 10->67 69 Allocates memory in foreign processes 10->69 71 Injects a PE file into a foreign processes 10->71 14 CasPol.exe 10->14         started        signatures6 process7 signatures8 73 Maps a DLL or memory area into another process 14->73 17 ALxJiCPELcnlljKkKnTDPvzlda.exe 14->17 injected process9 signatures10 45 Windows Update Standalone Installer command line found (may be used to bypass UAC) 17->45 47 Found direct / indirect Syscall (likely to bypass EDR) 17->47 20 proquota.exe 13 17->20         started        23 wusa.exe 17->23         started        process11 signatures12 57 Tries to steal Mail credentials (via file / registry access) 20->57 59 Tries to harvest and steal browser information (history, passwords, etc) 20->59 61 Modifies the context of a thread in another process (thread injection) 20->61 63 3 other signatures 20->63 25 ALxJiCPELcnlljKkKnTDPvzlda.exe 20->25 injected 29 firefox.exe 20->29         started        process13 dnsIp14 39 www.bulkfun.top 203.161.46.103, 49737, 49738, 49739 VNPT-AS-VNVNPTCorpVN Malaysia 25->39 41 lenslaser.com 162.241.216.140, 49757, 49758, 49759 UNIFIEDLAYER-AS-1US United States 25->41 43 11 other IPs or domains 25->43 65 Found direct / indirect Syscall (likely to bypass EDR) 25->65 signatures15
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2024-04-25 01:18:11 UTC
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  9/10
Tags:
credential_access discovery stealer
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Credentials from Password Stores: Credentials from Web Browsers
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
5b63ae729ae24eb04b3b4a26af8d9800a9a2a5bc4156efc0259d06a126b25ae8
MD5 hash:
a3e972e4cfb2cae1f06abbaad586c88a
SHA1 hash:
09f7917e4dbd58a47ce45867dcb810fbcb349ced
SH256 hash:
06acf27d1ccab01b6f0cc3f8fd4c17e29c534292494ad9aeaffaf6c55a9504e5
MD5 hash:
655d12178996fa2e84348d53575a2c21
SHA1 hash:
ebe37cefd922ad63f1abcf045bfd4b1e4897670e
Detections:
INDICATOR_EXE_Packed_ConfuserEx
SH256 hash:
7675631d570aea47469fd191b72161b94d4a3deeff50e3a175752561e491109f
MD5 hash:
ebfbb71da6129ae6799aa5021bebf016
SHA1 hash:
c5af5244bb66cd4059b4150bb3cb71a518eb7ccd
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SH256 hash:
d6514eed7fd7242c429612acedbc29e049b489dbaeabf6ebfc78b3526f267013
MD5 hash:
f296f7508497af5983d68e76cfa8e957
SHA1 hash:
558e85c25320b7281620299eaa7f01e531aee51c
Detections:
SUSP_OBF_NET_ConfuserEx_Packer_Jan24
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:INDICATOR_EXE_Packed_ConfuserEx
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments