MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5fe6c1b9d059a989012a070bb99d17899afaeb8f0fbd9141aeef5edce413b7c2. 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 4 File information Comments

SHA256 hash: 5fe6c1b9d059a989012a070bb99d17899afaeb8f0fbd9141aeef5edce413b7c2
SHA3-384 hash: 634e0826ebbc3bd596e91bf9c988d32397c49857ca7ffae464c7295e8fd45f8c9743c7be61493904c76a28d9f61d66d7
SHA1 hash: 3530c7684bc0962caa015669697ce8de460922ca
MD5 hash: a46ca3f5bb726bce578bd690585e7baf
humanhash: item-nitrogen-iowa-failed
File name:disjR92Xrrnc3aZ.exe
Download: download sample
Signature Formbook
File size:709'632 bytes
First seen:2024-07-03 06:09:10 UTC
Last seen:2024-07-03 07:32:22 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 12288:cu36JNf+wf8EOQe5DtNwdOrknFhm/P7SOcitbmFzhJkor5DXB6h6WZE6:YJp8EBed/4OWFA/P6Nhfr5F6z
Threatray 1'288 similar samples on MalwareBazaar
TLSH T1E6E401381598CE36E26E037EE0DA010467F4F2267583F70E6AD5A0D95CA37A1D93778B
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 00d4c8ae9ad4c400 (10 x Formbook, 9 x AgentTesla, 2 x RemcosRAT)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
368
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5fe6c1b9d059a989012a070bb99d17899afaeb8f0fbd9141aeef5edce413b7c2.exe
Verdict:
Suspicious activity
Analysis date:
2024-07-03 06:23:26 UTC
Tags:
netreactor

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

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
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.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1466632 Sample: disjR92Xrrnc3aZ.exe Startdate: 03/07/2024 Architecture: WINDOWS Score: 100 33 xatapartners.com 2->33 35 www.xatapartners.com 2->35 37 18 other IPs or domains 2->37 45 Snort IDS alert for network traffic 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 8 other signatures 2->51 11 disjR92Xrrnc3aZ.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\...\disjR92Xrrnc3aZ.exe.log, ASCII 11->31 dropped 63 Tries to detect virtualization through RDTSC time measurements 11->63 65 Injects a PE file into a foreign processes 11->65 67 Switches to a custom stack to bypass stack traces 11->67 15 disjR92Xrrnc3aZ.exe 11->15         started        18 disjR92Xrrnc3aZ.exe 11->18         started        signatures6 process7 signatures8 69 Modifies the context of a thread in another process (thread injection) 15->69 71 Maps a DLL or memory area into another process 15->71 73 Sample uses process hollowing technique 15->73 75 2 other signatures 15->75 20 explorer.exe 59 1 15->20 injected process9 dnsIp10 39 www.iffacosmetics.com.cdn.hstgr.net 91.108.98.97, 49720, 80 THREENETASNO Germany 20->39 41 ext-sq.squarespace.com 198.185.159.144, 49714, 80 SQUARESPACEUS United States 20->41 43 6 other IPs or domains 20->43 53 System process connects to network (likely due to code injection or exploit) 20->53 24 svchost.exe 20->24         started        signatures11 process12 signatures13 55 Modifies the context of a thread in another process (thread injection) 24->55 57 Maps a DLL or memory area into another process 24->57 59 Tries to detect virtualization through RDTSC time measurements 24->59 61 Switches to a custom stack to bypass stack traces 24->61 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2024-07-03 04:24:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:mc10 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
e1941690e52ff25d8c5723a27421327c9676f0d13cf2f7295b71006bb890d080
MD5 hash:
6765e23f97aadc7881dd5dc69eea55e6
SHA1 hash:
74686b672a4e96b3506c6bc34557722c69317489
SH256 hash:
541948cbd3ec9ff7f6a30c4d5c8e5a81b31a29683f9848e02f34ff332b866d10
MD5 hash:
a09f2dfa960964570a7f6ebc52c8e261
SHA1 hash:
26d81dfb405d717b57c88dc8bc6d4f68c4d63b5d
Detections:
INDICATOR_EXE_Packed_SmartAssembly
SH256 hash:
5fe6c1b9d059a989012a070bb99d17899afaeb8f0fbd9141aeef5edce413b7c2
MD5 hash:
a46ca3f5bb726bce578bd690585e7baf
SHA1 hash:
3530c7684bc0962caa015669697ce8de460922ca
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: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 (HIGH_ENTROPY_VA)high

Comments