MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e640ade723ba4aa48f63db4293d15b61c07c05bfdd93a3a0f83f4a177306b87d. 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
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SHA256 hash: e640ade723ba4aa48f63db4293d15b61c07c05bfdd93a3a0f83f4a177306b87d
SHA3-384 hash: 53b83f3c719b63ef579943644de45d27aff77c112a218be2501850ecc21ffc02d89c04c44af306c14b647a0c68e0027b
SHA1 hash: e1605510f182a0c6f8d3297355d9ceb00489df7c
MD5 hash: 0236dcc27cfb3d09325c976002567985
humanhash: nine-august-football-colorado
File name:vbc.exe.vir
Download: download sample
Signature Formbook
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File size:309'784 bytes
First seen:2022-06-21 08:54:06 UTC
Last seen:2022-06-21 09:53:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:ZDQswbK08ixKqJIz/7xg650sgf8elALSALNBf7:qFl8Rt3xg65XwdaLHLNF
TLSH T14A64CE5773C98B42DA9854F1C5EB493113E9AFC72A32E2863F48679D1E02363DE8274D
TrID 52.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
22.4% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
7.5% (.EXE) Win64 Executable (generic) (10523/12/4)
4.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter KdssSupport
Tags:dropped exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
207
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
CRT CO.,LTD 询价 22E000300.xlsx
Verdict:
Malicious activity
Analysis date:
2022-06-21 08:35:44 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader formbook trojan stealer
Link:
https://app.any.run/tasks/2520437a-4c0f-4160-9919-2709a027153f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/281833/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.11508.226.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Launching a process
Creating a file
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Searching for synchronization primitives
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated overlay packed wacatac
Link:
https://www.filescan.io/uploads/62b18780f4dd1ffb77a7ab9c/reports/30442934-6a70-4696-ba7e-16fee902798b/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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4da0344d-1308-4edd-9355-003e8a490352
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1016909
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
System process connects to network (likely due to code injection or exploit)
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 FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 649405 Sample: vbc.exe.vir Startdate: 21/06/2022 Architecture: WINDOWS Score: 100 32 www.livingwell.green 2->32 34 livingwell.green 2->34 42 Snort IDS alert for network traffic 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for URL or domain 2->46 48 6 other signatures 2->48 11 vbc.exe.exe 1 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\...\vbc.exe.exe.log, ASCII 11->30 dropped 64 Writes to foreign memory regions 11->64 66 Allocates memory in foreign processes 11->66 68 Injects a PE file into a foreign processes 11->68 70 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->70 15 cvtres.exe 11->15         started        signatures6 process7 signatures8 72 Modifies the context of a thread in another process (thread injection) 15->72 74 Maps a DLL or memory area into another process 15->74 76 Sample uses process hollowing technique 15->76 78 2 other signatures 15->78 18 explorer.exe 15->18 injected process9 dnsIp10 36 www.tlrohio.com 18->36 38 doroos.online 162.241.123.55, 49933, 49934, 49935 UNIFIEDLAYER-AS-1US United States 18->38 40 9 other IPs or domains 18->40 50 System process connects to network (likely due to code injection or exploit) 18->50 52 Performs DNS queries to domains with low reputation 18->52 22 cscript.exe 12 18->22         started        signatures11 process12 signatures13 54 Tries to steal Mail credentials (via file / registry access) 22->54 56 Tries to harvest and steal browser information (history, passwords, etc) 22->56 58 Modifies the context of a thread in another process (thread injection) 22->58 60 2 other signatures 22->60 25 cmd.exe 2 22->25         started        process14 signatures15 62 Tries to harvest and steal browser information (history, passwords, etc) 25->62 28 conhost.exe 25->28         started        process16
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/e640ade723ba4aa48f63db4293d15b61c07c05bfdd93a3a0f83f4a177306b87d/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-06-21 08:36:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4zak3zzdxjfkjd3d3nbjhuk3mhahybn73wj2hihyh5fbo4ygxb6q._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:vweq loader rat suricata
Link:
https://tria.ge/reports/220621-kvfb5segd3/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Uses the VBS compiler for execution
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
f93e9981a81b0f7db18b7dc39f25f29c02f639d5a6223d4a0593950a6c657cdd
MD5 hash:
3324ff03f3e3fa0f045e0ecde513eb5e
SHA1 hash:
c23458d1aab751b011a7ff20e9a8df4c8f06b1d2
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/268e566b-2745-4a87-8055-928e5deb6726/
Parent samples :
276c6876c250e5ebfd761d05937f5a48f7e4c9a6851293a77ab9bf683c8bbf80
e640ade723ba4aa48f63db4293d15b61c07c05bfdd93a3a0f83f4a177306b87d
b9420d9aebcbac4b5e7410b11383972bc328409d01d3ac2b7188ec7176f28cce
cae9a0644fd5cc322d7507cb395211a8af890df841bcd028f56e77399ada378b
be5b336a3ad03b3b70a286e38ba35c631f7d98f3c54e996c2e787f225b449879
38fbf4ef63938c61701107b226bef84d19a357b215830ce660101cfe6f59e75c
SH256 hash:
aedf65e5d9d889ce5cf0499773e8829e3179ac173f14b85d4fc5b4e23a721499
MD5 hash:
1ca2ba44e3ba2cecad167312783d7907
SHA1 hash:
361c27a4371ac4bb9857148cda03593370995466
Link:
https://www.unpac.me/results/268e566b-2745-4a87-8055-928e5deb6726/
SH256 hash:
e640ade723ba4aa48f63db4293d15b61c07c05bfdd93a3a0f83f4a177306b87d
MD5 hash:
0236dcc27cfb3d09325c976002567985
SHA1 hash:
e1605510f182a0c6f8d3297355d9ceb00489df7c
Link:
https://www.unpac.me/results/268e566b-2745-4a87-8055-928e5deb6726/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e640ade723ba/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/e640ade723ba4aa48f63db4293d15b61c07c05bfdd93a3a0f83f4a177306b87d

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:exploit_any_poppopret
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Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe e640ade723ba4aa48f63db4293d15b61c07c05bfdd93a3a0f83f4a177306b87d

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/281833/
  
URLhaus
https://urlhaus.abuse.ch/url/2246397/
  
Delivery method
Distributed via web download

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