MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e2fb3e62884d3e10aa6340adc488e37ffb2b15cbfe4842ff4bc7c1c83b908305. 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 5 File information Comments

SHA256 hash: e2fb3e62884d3e10aa6340adc488e37ffb2b15cbfe4842ff4bc7c1c83b908305
SHA3-384 hash: 0ccca997d4440b43466408297f721a479cfe30ae1635953ec32b912369608beead00e8867046d55be608139ab8a07e43
SHA1 hash: d0da905ae01df3db821db23eb6665ffa50bfdec1
MD5 hash: 033bc3249eab9a82f4238f19acd2c2f7
humanhash: pennsylvania-white-angel-oscar
File name:PURCHASING ORDER.exe
Download: download sample
Signature Formbook
File size:691'712 bytes
First seen:2024-07-18 05:46:20 UTC
Last seen:2024-07-24 22:22:55 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:/uTDWx2PQfQmNzLP2P4MUnR2gk85pxXK1He6DsWcDF:/EawMQmNPgwc/8NwDsWcx
TLSH T1BDE4121273ED4F18E4BB03B4A974821097F7B5656D32E31E8D9520DD0DB2B814F1ABAB
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 78dc9adce086c460 (9 x Formbook, 1 x SnakeKeylogger, 1 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
354
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Malicious
Score:
96.5%
Tags:
Generic Stealth Msil
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:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade 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, PureLog Stealer
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
Performs DNS queries to domains with low reputation
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
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1475666 Sample: PURCHASING ORDER.exe Startdate: 18/07/2024 Architecture: WINDOWS Score: 100 31 www.raidsa.xyz 2->31 33 www.manhuafeifei.xyz 2->33 35 16 other IPs or domains 2->35 41 Snort IDS alert for network traffic 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 49 13 other signatures 2->49 11 PURCHASING ORDER.exe 3 2->11         started        signatures3 47 Performs DNS queries to domains with low reputation 33->47 process4 file5 29 C:\Users\user\...\PURCHASING ORDER.exe.log, ASCII 11->29 dropped 61 Injects a PE file into a foreign processes 11->61 15 PURCHASING ORDER.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 2 other signatures 15->69 18 explorer.exe 90 1 15->18 injected process9 dnsIp10 37 cryptosmartguide.xyz 3.33.130.190, 53674, 53680, 53683 AMAZONEXPANSIONGB United States 18->37 39 arelenegrace.com 76.223.105.230, 53678, 80 AMAZON-02US United States 18->39 51 System process connects to network (likely due to code injection or exploit) 18->51 22 svchost.exe 18->22         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 59 Switches to a custom stack to bypass stack traces 22->59 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2024-07-15 13:12:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:hy08 rat spyware stealer trojan
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
7c54317ef42ab2fab03d5ef53e9bb320cdd4103ee4433f249d29d4cc57b7306c
MD5 hash:
cbdc0a6dbe1fdb206f5622229bbeae7f
SHA1 hash:
c5d3792434c495bdff4b6b1ef9dfb501af3b9548
SH256 hash:
1bb4840538b8a367866894b14c4aa62c2905fe4ec8ebd633fb8c8c8864a37293
MD5 hash:
222df17caf2704d5edc6772d672cd705
SHA1 hash:
27851dd2812599b460335dd978110260fda327e1
SH256 hash:
1914c8b4758afa32360cf0d8bdb9e22702af25252404dacd6188c7574948feff
MD5 hash:
4c88049b15b8948db110a66c4210bf1b
SHA1 hash:
057d27b8dd4ef39aaad8b9154244397a5ff2110e
SH256 hash:
e2fb3e62884d3e10aa6340adc488e37ffb2b15cbfe4842ff4bc7c1c83b908305
MD5 hash:
033bc3249eab9a82f4238f19acd2c2f7
SHA1 hash:
d0da905ae01df3db821db23eb6665ffa50bfdec1
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

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