MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a335420005debd5b4e09fe983d88d18c6f62e88e504776f3f23491d0b339018. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8a335420005debd5b4e09fe983d88d18c6f62e88e504776f3f23491d0b339018
SHA3-384 hash: 8daf69d7c827e12173193d8a105caf49d9dd1cb6cc201b8bc7bfafaf738176506d40dd80a89b9c69c62fdcafbc190654
SHA1 hash: e51e5d50f18cd72d355f4ef2a3e9b5fbf538a0ec
MD5 hash: 4f63a2b859ee95ea979090c816724388
humanhash: pennsylvania-vermont-kansas-wisconsin
File name:SecuriteInfo.com.Trojan.PackedNET.1584.7042.21135
Download: download sample
Signature Formbook
Create hunting rule
File size:305'648 bytes
First seen:2022-09-23 15:46:31 UTC
Last seen:Never
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:Sec9B+liw3vd7mJlbkohaZpvmq5Vqt5A2oAQRS4vFH:S/03vCkpvB2vHA5vFH
Threatray 145 similar samples on MalwareBazaar
TLSH T1FB540284B398494FC826AF7BA5CE81294776BC187D42D3A671CAB31C0EE33D92D254D7
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)
File icon (PE):PE icon
dhash icon d2e8ecb2b2a2b282 (106 x AgentTesla, 106 x Formbook, 24 x RedLineStealer)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
297
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/312608/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1584.7042.21135.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated overlay packed
Link:
https://www.filescan.io/uploads/632dd519e64c53f04700b177/reports/bf924cf1-1fab-4c2f-a3a0-74f90fd7024c/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7350a795-cc1f-4282-9bf1-9865085b0a96
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1075998
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 708540 Sample: SecuriteInfo.com.Trojan.Pac... Startdate: 23/09/2022 Architecture: WINDOWS Score: 100 32 Malicious sample detected (through community Yara rule) 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 Yara detected FormBook 2->36 38 3 other signatures 2->38 8 SecuriteInfo.com.Trojan.PackedNET.1584.7042.21135.exe 1 2->8         started        process3 file4 22 SecuriteInfo.com.T....7042.21135.exe.log, ASCII 8->22 dropped 48 Writes to foreign memory regions 8->48 50 Allocates memory in foreign processes 8->50 52 Injects a PE file into a foreign processes 8->52 54 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 8->54 12 aspnet_compiler.exe 8->12         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 12->56 58 Maps a DLL or memory area into another process 12->58 60 Sample uses process hollowing technique 12->60 62 Queues an APC in another process (thread injection) 12->62 15 explorer.exe 12->15 injected process8 dnsIp9 24 www.mionchun.com 154.218.174.74, 49701, 80 VPSQUANUS Seychelles 15->24 26 henslensproductions.net 162.241.217.198, 49708, 49709, 49710 UNIFIEDLAYER-AS-1US United States 15->26 28 4 other IPs or domains 15->28 30 System process connects to network (likely due to code injection or exploit) 15->30 19 svchost.exe 13 15->19         started        signatures10 process11 signatures12 40 Tries to steal Mail credentials (via file / registry access) 19->40 42 Tries to harvest and steal browser information (history, passwords, etc) 19->42 44 Modifies the context of a thread in another process (thread injection) 19->44 46 Maps a DLL or memory area into another process 19->46
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8a335420005debd5b4e09fe983d88d18c6f62e88e504776f3f23491d0b339018/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-09-23 13:55:34 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rizviiaalxv5lnhat7uyhwendddpmlui4ucho3z7ener2cztsama._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0055c0240aa6da781fdbe57182ebe6d1e69c9d9a1eb401cdab0ad574e9191c17
Formbook
06a16b27c0fb73721a8e914688491abab539ea56fbe8df580fa91b22a0c8afec
Formbook
1c8cfb9a1902b2601d5819eb87f4dfe03c51bd99b6e6beecb95d7f749d7ea088
Formbook
3d4bcb3525d58d2270133e0349f8cc3463a2c5b151e8cc7b1580806c6e86fbf8
Formbook
5173308acdc7cfbb18621685a0a5a6db64ad1c95aadbe4cceca348f071239245
Formbook
5313fc45b561f9f19cd4085a2ee687c10d41762994e43eb33e0c94e78c1d7652
Formbook
c35cd99a9bd4f1a8289d3bc98bf59a57ac7816ec16de668d37cf4ee747ab7c35
Formbook
c923b5976862e86bd94180a0f141ff001715eed24b895c1e4e2b066107c40412
Formbook
da98cbe42ca0067f1c8646f6cb039fb77e20ec5073d247376db2ee07307d528c
Formbook
f2c121b416fc3e961b271733a3e269b1227d0579676c60da524b80c15dbf33ac
Formbook
+ 135 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:cwtc rat spyware stealer trojan
Link:
https://tria.ge/reports/220923-s77adshdg9/
Behaviour
Gathers network information
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a399af92-56da-4bb4-b4ca-066a19c10738
Unpacked files
SH256 hash:
15a670c55a42ed0192987ffb98c8ec4ff5b386f2cc21636db094e7a336095409
MD5 hash:
091fda79acadcd925e3b6e7f2598d58f
SHA1 hash:
774e25b885f289419dddab640c1139d2b91bc01f
Link:
https://www.unpac.me/results/5efe559d-114a-4c35-84b9-817a74085598/
SH256 hash:
a52e0edf3ade811f99480da79d4678786c9710435d5af35e1b2101d0a530dea4
MD5 hash:
55b45a049b712e97736c63a1dba7a109
SHA1 hash:
fa8900c06a172d01eb88728dec35e3688b100281
Link:
https://www.unpac.me/results/5efe559d-114a-4c35-84b9-817a74085598/
SH256 hash:
720f9ce4a509bc1aa4a20f8c6c10ddf498b856b0daf8bf520fd9d6121c67e897
MD5 hash:
d93bf059b422bab80297c51562b92e60
SHA1 hash:
2b2d7aef2634bc9336dc628c358456b6178c2321
Link:
https://www.unpac.me/results/5efe559d-114a-4c35-84b9-817a74085598/
SH256 hash:
8a335420005debd5b4e09fe983d88d18c6f62e88e504776f3f23491d0b339018
MD5 hash:
4f63a2b859ee95ea979090c816724388
SHA1 hash:
e51e5d50f18cd72d355f4ef2a3e9b5fbf538a0ec
Link:
https://www.unpac.me/results/5efe559d-114a-4c35-84b9-817a74085598/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8a335420005d/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/8a335420005debd5b4e09fe983d88d18c6f62e88e504776f3f23491d0b339018

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:INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/312608/

Comments