MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a243e6a605d8bb403f4cacb90a290d8f415d523dcc3c6eeedcf72f5cf803efa4. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a243e6a605d8bb403f4cacb90a290d8f415d523dcc3c6eeedcf72f5cf803efa4
SHA3-384 hash: aa64a492b4b77dcc39c6dbd68a2145285abe534a9c73c0733e2d0134c7877088ff5a53c4814d0f9953c840273b1bcb6e
SHA1 hash: 2d64711f6503c3b6ffd792aa0119efffae61883d
MD5 hash: 08554cb035e1c8f14b980019ffae237c
humanhash: may-sink-alaska-uranus
File name:08554cb035e1c8f14b980019ffae237c.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'467'904 bytes
First seen:2021-01-19 07:08:37 UTC
Last seen:2021-01-19 09:21:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:qUu1UJYj3IPixMp9Zwr3ipY2+hDWkQed38YWWpeLNSrh:73AxMkep6rQq3cLNSr
Threatray 3'537 similar samples on MalwareBazaar
TLSH 3B65D6AC722071EFC857D4B28A981DA8EA547C7B431B4503E46736ADDA3C997CF244F2
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
106
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SHEXD210117S_ShippingDocument_DkD.xlsx
Verdict:
Malicious activity
Analysis date:
2021-01-19 06:04:24 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/fcd81da2-ee6e-47b9-9bb7-b199254c93bd

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/112746/
Detection(s):
SecuriteInfo.com.Artemis08554CB035E1.4395.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/584544
Signature
Binary contains a suspicious time stamp
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected unpacking (changes PE section rights)
Found malware configuration
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
PE file contains section with special chars
PE file has nameless sections
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 341306 Sample: CQcT4Ph03Z.exe Startdate: 19/01/2021 Architecture: WINDOWS Score: 100 32 www.rlc-nc.net 2->32 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 8 other signatures 2->48 11 CQcT4Ph03Z.exe 3 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\...\CQcT4Ph03Z.exe.log, ASCII 11->30 dropped 58 Detected unpacking (changes PE section rights) 11->58 60 Tries to detect virtualization through RDTSC time measurements 11->60 62 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->62 15 CQcT4Ph03Z.exe 11->15         started        signatures6 process7 signatures8 64 Modifies the context of a thread in another process (thread injection) 15->64 66 Maps a DLL or memory area into another process 15->66 68 Sample uses process hollowing technique 15->68 70 Queues an APC in another process (thread injection) 15->70 18 explorer.exe 15->18 injected process9 dnsIp10 34 www.republicpc.com 192.185.4.24, 49747, 80 UNIFIEDLAYER-AS-1US United States 18->34 36 www.w5470-hed.net 163.43.122.119, 49742, 49767, 80 SAKURA-BSAKURAInternetIncJP Japan 18->36 38 20 other IPs or domains 18->38 50 System process connects to network (likely due to code injection or exploit) 18->50 22 help.exe 12 18->22         started        signatures11 process12 dnsIp13 40 www.precisionoxes.com 22->40 52 Modifies the context of a thread in another process (thread injection) 22->52 54 Maps a DLL or memory area into another process 22->54 56 Tries to detect virtualization through RDTSC time measurements 22->56 26 cmd.exe 1 22->26         started        signatures14 process15 process16 28 conhost.exe 26->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a243e6a605d8bb403f4cacb90a290d8f415d523dcc3c6eeedcf72f5cf803efa4/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-01-19 01:30:52 UTC
AV detection:
15 of 45 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ujb6njqf3c5uap2mvs4qukinr5av2ur5zq6g53w464xvz6ad56sa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1d2cf0287f43172cf4b7e250574319fa36b733e98878622e2ea016f5c0437679
Formbook
51b0b3909d415002f11d8301a4a57e60c0b111c4a99685bf0008bd43d2b1fdfb
Formbook
63289870bb6e2bbb13afd47bf630c048e593afacc5c968939855f85ca5022ea4
Formbook
7b7ba3b00b882d63305aa49b3ab3c832646cded84a750de64963357bab3fc37a
Formbook
985306a8b7a5cb0604af6bbbddea16f334b17bcec4c5477bdfdb0330ed66b674
Formbook
ac23d4ba0e11c07488224b01abc734d353da88537ed55c945eec7a91a20216a4
Formbook
b34c09bf9e0459b2a09c73eb3f1c43d87861c64bbbbe26e59bfc243ef589f720
Formbook
b4a9843d6c2869da17c9fb36d3aae7b869f3df444280943e07f3944f6408f086
Formbook
c826a0b0506ddc4d93aba9f41ed795a88cca8bdb8c54f4af5d8dbdf9767e9ad3
Formbook
cdfc1600f7f5656fb2b72fd10da44b8f7e12f4c40027a4338251e5d7e9f0e743
Formbook
+ 3'527 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader loader rat spyware stealer trojan
Link:
https://tria.ge/reports/210119-9kaaqact8a/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.stonescapes1.com/de92/
Unpacked files
SH256 hash:
c3dbb38fe783bb752cd86bf075eec7754facd5d69584cfba43f77b4ad9efdb89
MD5 hash:
de94d3d3943cb9339f826a6b70f905e7
SHA1 hash:
459f616f22038ffbcc47f41c8af6e58a4b68d124
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/0aea9c20-5a86-4e9c-be03-8630ce0aa5b8/
Parent samples :
51b0b3909d415002f11d8301a4a57e60c0b111c4a99685bf0008bd43d2b1fdfb
7b7ba3b00b882d63305aa49b3ab3c832646cded84a750de64963357bab3fc37a
985306a8b7a5cb0604af6bbbddea16f334b17bcec4c5477bdfdb0330ed66b674
1d2cf0287f43172cf4b7e250574319fa36b733e98878622e2ea016f5c0437679
63289870bb6e2bbb13afd47bf630c048e593afacc5c968939855f85ca5022ea4
a243e6a605d8bb403f4cacb90a290d8f415d523dcc3c6eeedcf72f5cf803efa4
d33af7d89d11e3319210f655787f74b8118e0e8804b85d718e659ead5db3ff1d
SH256 hash:
7654ad9e67599d376ad77c7b23273fd334f0ea8c07394dd17d72fcc90a0b0b6f
MD5 hash:
f40a2d4ae8e4d031f0e7ff0caf28ebbf
SHA1 hash:
99e874b66617bcd9566db86de732c3fb55f5a6b0
Link:
https://www.unpac.me/results/0aea9c20-5a86-4e9c-be03-8630ce0aa5b8/
SH256 hash:
5939328fac73918e6b64eda91193109f5667c138a538b86380511dd3c4976d3d
MD5 hash:
d10cead8a3aaa65ae05f7d84e1d2e851
SHA1 hash:
0987115e480520ff0d962699feeeeb099190fc63
Link:
https://www.unpac.me/results/0aea9c20-5a86-4e9c-be03-8630ce0aa5b8/
SH256 hash:
a243e6a605d8bb403f4cacb90a290d8f415d523dcc3c6eeedcf72f5cf803efa4
MD5 hash:
08554cb035e1c8f14b980019ffae237c
SHA1 hash:
2d64711f6503c3b6ffd792aa0119efffae61883d
Link:
https://www.unpac.me/results/0aea9c20-5a86-4e9c-be03-8630ce0aa5b8/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a243e6a605d8bb403f4cacb90a290d8f415d523dcc3c6eeedcf72f5cf803efa4

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:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del

File information

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

Web download

Formbook

Executable exe a243e6a605d8bb403f4cacb90a290d8f415d523dcc3c6eeedcf72f5cf803efa4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/969490/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/112746/

Comments