MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 19f67f8e8d53e712c27eb18cb84cbdb6e4536a410508360c6d7b0a0571ba48ee. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments

SHA256 hash: 19f67f8e8d53e712c27eb18cb84cbdb6e4536a410508360c6d7b0a0571ba48ee
SHA3-384 hash: 515b7e36738fd6360e4f62966e7c3c06d8a06276edae18696b03b48e1348a9a4e81faa213b98263c40097994fe2592a0
SHA1 hash: 90eacd629dd47bf19d0ff0061b992af3868beff7
MD5 hash: f88f88595c16821626baf4c9a5c2ff81
humanhash: double-low-papa-lactose
File name:IMnHbOizPQmnvZz.exe
Download: download sample
Signature Formbook
File size:734'720 bytes
First seen:2022-09-16 13:05:51 UTC
Last seen:Never
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:eObCYCRu20Bw0Uld/wy1MuG6SrZlV0n95keuneAhw:eO2YyP1/wAstlan95X1
TLSH T1B3F4F106B7EACA13CA598673D9D1552443B2E583EE22C71F3AD833E50E133639D4279E
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon b2b2b2b2b2b2b2b2 (8 x Formbook, 5 x AgentTesla, 3 x Loki)
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
262
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
IMnHbOizPQmnvZz.exe
Verdict:
Malicious activity
Analysis date:
2022-09-16 13:11:30 UTC
Tags:
formbook trojan stealer

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
Launching a process
Searching for the window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching cmd.exe command interpreter
Reading critical registry keys
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
67%
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 method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in 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 domain / URL
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
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 704166 Sample: IMnHbOizPQmnvZz.exe Startdate: 16/09/2022 Architecture: WINDOWS Score: 100 35 www.reviewtasks.email 2->35 37 www.tiktokmall.info 2->37 39 parkingpage.namecheap.com 2->39 47 Snort IDS alert for network traffic 2->47 49 Multi AV Scanner detection for domain / URL 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 9 other signatures 2->53 11 IMnHbOizPQmnvZz.exe 3 2->11         started        signatures3 process4 file5 33 C:\Users\user\...\IMnHbOizPQmnvZz.exe.log, ASCII 11->33 dropped 63 Tries to detect virtualization through RDTSC time measurements 11->63 65 Injects a PE file into a foreign processes 11->65 15 IMnHbOizPQmnvZz.exe 11->15         started        18 IMnHbOizPQmnvZz.exe 11->18         started        20 IMnHbOizPQmnvZz.exe 11->20         started        signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 15->67 69 Maps a DLL or memory area into another process 15->69 71 Sample uses process hollowing technique 15->71 73 Queues an APC in another process (thread injection) 15->73 22 explorer.exe 15->22 injected process9 dnsIp10 41 www.hnzhenfu.com 156.224.125.35, 49738, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 22->41 43 www.slotsformula.com 104.21.22.60, 49736, 80 CLOUDFLARENETUS United States 22->43 45 www.defindvet.com 22->45 55 System process connects to network (likely due to code injection or exploit) 22->55 26 cmstp.exe 22->26         started        signatures11 process12 signatures13 57 Modifies the context of a thread in another process (thread injection) 26->57 59 Maps a DLL or memory area into another process 26->59 61 Tries to detect virtualization through RDTSC time measurements 26->61 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Threat name:
Win32.Trojan.Woreflint
Status:
Malicious
First seen:
2022-09-15 16:36:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:formbook family:xloader campaign:roz2 loader persistence rat spyware stealer trojan
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Reads user/profile data of web browsers
Xloader payload
Formbook
Xloader
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
3fe02c7f78355bb6db68d8f7417d070c7c8b16448a79df3821e4019ad2196aec
MD5 hash:
4b27047549a1b8355b944345089a01cc
SHA1 hash:
c4e58b9f99b5e4f0244a9dcd31e2cc494d869517
SH256 hash:
cfe63867b915826f1064b70674ade1ecf8d20a152b7d08e577d3c1dd3dbe37c8
MD5 hash:
6b9f68595cd1b8d01f10f87d621aaf1f
SHA1 hash:
9c54d6b811128e52195a3615f834e23a38ff77c5
SH256 hash:
3391acf13947e0bb0e9f26d216449e18af898c80d44fb56be7c54098529a2525
MD5 hash:
17a5884d20b8a560ec099743dae0c60b
SHA1 hash:
90677bd6edc946159f25d6e42962bf8410a27d50
SH256 hash:
5d6da7c1e6479460ac449f54fc352976dcfa4da90de5730557c1095daa014b9d
MD5 hash:
fdef51877a745d240bfd2fb37cecd82a
SHA1 hash:
3f655da173b983798288d46500a724474bc2f919
SH256 hash:
e20ec8f3c957bcb6a194ef688bae8af2015cfffb20e7baf8b2114d7b70ade4ee
MD5 hash:
35cb29046968faca7f3f3b4463449b6c
SHA1 hash:
088c8c30ec1bece0a4b5bbfe3982b073f8b95598
SH256 hash:
19f67f8e8d53e712c27eb18cb84cbdb6e4536a410508360c6d7b0a0571ba48ee
MD5 hash:
f88f88595c16821626baf4c9a5c2ff81
SHA1 hash:
90eacd629dd47bf19d0ff0061b992af3868beff7
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:pe_imphash
Rule name:RansomwareTest6
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
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.

Malspam

Formbook

Executable exe 19f67f8e8d53e712c27eb18cb84cbdb6e4536a410508360c6d7b0a0571ba48ee

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments