MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b757c82d494f1f23816a87fc609e8f5227fbe921aa80c5fcddd95fde653c8523. 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 File information Comments

SHA256 hash: b757c82d494f1f23816a87fc609e8f5227fbe921aa80c5fcddd95fde653c8523
SHA3-384 hash: 59ce107dea3ccac119511dcbc47ffaf8c3f478135c7f19d20d90aafa2d1bddd019c533766b05034951ea765160fe1ab1
SHA1 hash: 65b9efbe3f2fba80a2c55c2f5f07aa0e852545d3
MD5 hash: d815c20f87e50b43e941bcdc45b158e5
humanhash: enemy-princess-april-lion
File name:d815c20f87e50b43e941bcdc45b158e5.exe
Download: download sample
Signature Formbook
File size:383'098 bytes
First seen:2022-11-18 22:48:44 UTC
Last seen:2022-11-19 00:51:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 29b61e5a552b3a9bc00953de1c93be41 (174 x Formbook, 82 x AgentTesla, 81 x Loki)
ssdeep 6144:MEa0N1T1wMMatrYfPJIGX8wNxVzZXDwUALxxYzwIIHChqzhFsrPDR591:Xp1GaCf7X8wNxFZXpAL/xEqzhwR5H
TLSH T12784231751A4E9ABE7DA98314D73D760C63E899C5911EFD3C7A0EFB994B2003AD0E083
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.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 abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
163
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
d815c20f87e50b43e941bcdc45b158e5.exe
Verdict:
Malicious activity
Analysis date:
2022-11-18 22:59:35 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
Searching for the window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Searching for synchronization primitives
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
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
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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 dropped file
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 harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 749581 Sample: hjGin4suRR.exe Startdate: 19/11/2022 Architecture: WINDOWS Score: 100 26 www.afterdarksocial.club 2->26 44 Snort IDS alert for network traffic 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for URL or domain 2->48 50 4 other signatures 2->50 9 hjGin4suRR.exe 18 2->9         started        signatures3 process4 file5 24 C:\Users\user\AppData\...\ifzaocyiid.exe, PE32 9->24 dropped 12 ifzaocyiid.exe 9->12         started        process6 signatures7 52 Multi AV Scanner detection for dropped file 12->52 54 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 12->54 56 Maps a DLL or memory area into another process 12->56 15 ifzaocyiid.exe 12->15         started        process8 signatures9 58 Modifies the context of a thread in another process (thread injection) 15->58 60 Maps a DLL or memory area into another process 15->60 62 Sample uses process hollowing technique 15->62 64 Queues an APC in another process (thread injection) 15->64 18 wlanext.exe 13 15->18         started        21 explorer.exe 15->21 injected process10 dnsIp11 34 Tries to steal Mail credentials (via file / registry access) 18->34 36 Tries to harvest and steal browser information (history, passwords, etc) 18->36 38 Modifies the context of a thread in another process (thread injection) 18->38 40 Maps a DLL or memory area into another process 18->40 28 eufidelizo.com 192.185.217.47, 49702, 80 UNIFIEDLAYER-AS-1US United States 21->28 30 www.lyonfinancialusa.com 206.233.197.135, 49703, 49704, 49705 COGENT-174US United States 21->30 32 www.eufidelizo.com 21->32 42 System process connects to network (likely due to code injection or exploit) 21->42 signatures12
Threat name:
Win32.Trojan.Tnega
Status:
Malicious
First seen:
2022-11-18 03:29:57 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
25 of 40 (62.50%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:henz rat spyware stealer trojan
Behaviour
Enumerates system info in registry
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
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
0e269590075db8fae5f50fc93f05858bee15d0df70fded8257ea05d8dabddc9d
MD5 hash:
346661ca43cb88e99995cdd7c82e8451
SHA1 hash:
4c546b5e83e75342451908d42a3e393246595734
Detections:
XLoader win_formbook_auto win_formbook_g0
SH256 hash:
28b16f47301f54fa84b0bc5ac89a7af59689d9cef26c72dc46899e68d721927c
MD5 hash:
1a19d42acf93b01f6510ffca0eec3f99
SHA1 hash:
d3a5adc90c2bc1d9b99143800966295b8af46cb9
SH256 hash:
786b37c75243aee6b91e9719c37d9b75f412716ce996d5a3b32932b5d75c1246
MD5 hash:
eb377eee55f720b8b331ac2201a760e1
SHA1 hash:
f10ff5a77aace0e0d16985cd576c5c59a24b448d
SH256 hash:
b757c82d494f1f23816a87fc609e8f5227fbe921aa80c5fcddd95fde653c8523
MD5 hash:
d815c20f87e50b43e941bcdc45b158e5
SHA1 hash:
65b9efbe3f2fba80a2c55c2f5f07aa0e852545d3
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Web download

Formbook

Executable exe b757c82d494f1f23816a87fc609e8f5227fbe921aa80c5fcddd95fde653c8523

(this sample)

  
Delivery method
Distributed via web download

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