MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e501033aa51872169d36301b995f068598c4d56dc651bcbf5efc1722bbd35e39. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments
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SHA256 hash: e501033aa51872169d36301b995f068598c4d56dc651bcbf5efc1722bbd35e39
SHA3-384 hash: fb3bf322cf374fc1697b86c4a801fa740cf5c1b48b7f4c7c9531eb634b2d2faae46e00ea363cc0321a20a06bec2d8909
SHA1 hash: 931d5ea3cd448b3ebb6ef46e24c9ca8cbfab0eba
MD5 hash: 5ad56c9d82c258466ed1f94c5f747e80
humanhash: alpha-sierra-kentucky-neptune
File name:PRE-ALERT ==HTHC22031529.scr
Download: download sample
Signature Formbook
Create hunting rule
File size:622'592 bytes
First seen:2022-06-03 06:13:14 UTC
Last seen:2022-06-03 14:57:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:G9xzfmCpiXjn4AriJRHMzpxPch9HQFkWGA2cQlBXK307i:6bmCPeTz2nD
TLSH T195D4DF22F38B4726F03ED675CC21D4785AA5BC8BBA03E96B99C94ECF35E1D41441B12B
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
312
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PRE-ALERT ==HTHC22031529.scr
Verdict:
Suspicious activity
Analysis date:
2022-06-03 06:17:18 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b63cfe17-9094-49cc-8ac7-7d581de993ad

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/276429/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.49102207.12314.5023.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Adding an access-denied ACE
Launching a process
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6299a6878787703a222edf48/reports/f4af9b86-6c22-4f5b-a748-5437e8b451e6/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/0748e8d8-9c27-4a64-a52a-ad1a60cdbfda
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1006092
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
Creates an undocumented autostart registry key
Found malware configuration
Injects a PE file into a foreign processes
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
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 638588 Sample: PRE-ALERT ==HTHC22031529.scr Startdate: 03/06/2022 Architecture: WINDOWS Score: 100 38 www.smakresources.com 2->38 40 www.hotbluecaps.site 2->40 42 2 other IPs or domains 2->42 52 Snort IDS alert for network traffic 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 9 other signatures 2->58 11 PRE-ALERT ==HTHC22031529.scr 1 2->11         started        signatures3 process4 file5 36 C:\Users\...\PRE-ALERT ==HTHC22031529.scr.log, ASCII 11->36 dropped 72 Writes to foreign memory regions 11->72 74 Allocates memory in foreign processes 11->74 76 Injects a PE file into a foreign processes 11->76 15 AtBroker.exe 11->15         started        signatures6 process7 signatures8 78 Modifies the context of a thread in another process (thread injection) 15->78 80 Maps a DLL or memory area into another process 15->80 82 Sample uses process hollowing technique 15->82 84 2 other signatures 15->84 18 explorer.exe 15->18 injected process9 signatures10 50 System process connects to network (likely due to code injection or exploit) 18->50 21 rundll32.exe 1 12 18->21         started        process11 signatures12 60 Creates an undocumented autostart registry key 21->60 62 Tries to steal Mail credentials (via file / registry access) 21->62 64 Tries to harvest and steal browser information (history, passwords, etc) 21->64 66 3 other signatures 21->66 24 explorer.exe 3 149 21->24         started        28 cmd.exe 2 21->28         started        30 cmd.exe 1 21->30         started        process13 dnsIp14 44 www.coffeecandlecards.com 74.208.236.220, 49867, 80 ONEANDONE-ASBrauerstrasse48DE United States 24->44 46 www.tourenmitspuren.com 85.13.142.247, 49870, 80 NMM-ASD-02742FriedersdorfHauptstrasse68DE Germany 24->46 48 11 other IPs or domains 24->48 68 System process connects to network (likely due to code injection or exploit) 24->68 70 Tries to harvest and steal browser information (history, passwords, etc) 28->70 32 conhost.exe 28->32         started        34 conhost.exe 30->34         started        signatures15 process16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e501033aa51872169d36301b995f068598c4d56dc651bcbf5efc1722bbd35e39/
Threat name:
ByteCode-MSIL.Trojan.Tnega
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Status:
Malicious
First seen:
2022-06-03 05:47:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
19 of 41 (46.34%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4uaqgovfdbzbnhjwganzsxygqwmmjvlnyzi3zp267qlsfo6tly4q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:he8c loader persistence rat spyware stealer suricata
Link:
https://tria.ge/reports/220603-gza2fafbbr/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Drops file in Program Files directory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Adds policy Run key to start application
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
90a7541d9098a062356917a9a0cea4d7e4ca0e4264e229c5896d3fb5cd5d8751
MD5 hash:
f34fc3a21ce9bd69c8dae1454746cf18
SHA1 hash:
8e45f11b9b367f3411ced6569b320fcc58e16f35
Link:
https://www.unpac.me/results/2950362c-0492-4eab-b24e-a2d31ff7735b/
SH256 hash:
70b785e5cb5b2e61c0f5da4a71ab0bbd14d9a0849387f037e0d75cc1ffe0a082
MD5 hash:
5951b52c9b4d11ca7f4f33e5a3fb2c31
SHA1 hash:
0bc54fd699fff7b93e5c447a141c0d904924ab0d
Link:
https://www.unpac.me/results/2950362c-0492-4eab-b24e-a2d31ff7735b/
SH256 hash:
e501033aa51872169d36301b995f068598c4d56dc651bcbf5efc1722bbd35e39
MD5 hash:
5ad56c9d82c258466ed1f94c5f747e80
SHA1 hash:
931d5ea3cd448b3ebb6ef46e24c9ca8cbfab0eba
Link:
https://www.unpac.me/results/2950362c-0492-4eab-b24e-a2d31ff7735b/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e501033aa518/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/e501033aa51872169d36301b995f068598c4d56dc651bcbf5efc1722bbd35e39

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Malspam

Formbook

zip af44da4d5824fb003cfd2833c9552920c776b8bd4c486034ecc1127043145b12

Formbook

Executable exe e501033aa51872169d36301b995f068598c4d56dc651bcbf5efc1722bbd35e39

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/276429/
  
Dropped by
SHA256 af44da4d5824fb003cfd2833c9552920c776b8bd4c486034ecc1127043145b12
  
Dropped by
MD5 29b2f9160e8bf9c7de57bac3aff47760

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