MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 27b2b539c061e496c1baa6ff071e6ce1042ae4d77d398fd954ae1a62f9ad3885. 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: 14


Intelligence 14 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 27b2b539c061e496c1baa6ff071e6ce1042ae4d77d398fd954ae1a62f9ad3885
SHA3-384 hash: dbe9288a0b09151fadc57f84a47eb2bc34291aabc9de2fda823600e9fdcefc522ec02db1d75062ebbe10e0713fc42d39
SHA1 hash: 830edb007222442aa5c0883b5a2368f8da32acd1
MD5 hash: 1b5393505847dcd181ebbc23def363ca
humanhash: skylark-queen-avocado-johnny
File name:Transfer slip.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:657'920 bytes
First seen:2022-06-23 02:31:22 UTC
Last seen:2022-06-23 03:34:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:VDQ9qLAi2W3j5Wds1Y8JqIaZa/Efms0l94qtqvdn3SaUfU9Dh+634Y7vv67:V0sdy0lm0l3SFhFjG
TLSH T1BAE49F205A0E277FDEF9CB786611448087F8696DF922C52D3FE6208F15D8B46E0A77B1
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
246
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/282478/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/62b3d081e88d6da4ffbdfb7b/reports/8355a356-99dd-474e-89aa-4d16440f96ec/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/348121ba-99bf-4ba9-9526-ad224550327a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1018344
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 650840 Sample: Transfer slip.exe Startdate: 23/06/2022 Architecture: WINDOWS Score: 100 31 www.xxxpool.xyz 2->31 39 Snort IDS alert for network traffic 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus detection for URL or domain 2->43 45 8 other signatures 2->45 11 Transfer slip.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\...\Transfer slip.exe.log, ASCII 11->29 dropped 55 Injects a PE file into a foreign processes 11->55 15 Transfer slip.exe 11->15         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 Queues an APC in another process (thread injection) 15->63 18 explorer.exe 15->18 injected process9 dnsIp10 33 omnixinity.com 162.241.217.69, 49815, 80 UNIFIEDLAYER-AS-1US United States 18->33 35 www.ourfutures.biz 223.26.138.10, 49846, 80 HYOSUNGITX-AS-KRHyosungITXKR Korea Republic of 18->35 37 9 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 msdt.exe 18->22         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/27b2b539c061e496c1baa6ff071e6ce1042ae4d77d398fd954ae1a62f9ad3885/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-06-22 18:23:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=e6zlkooamhsjnqn2u37qohtm4eccvzgxpu4y7wkuvyngf6nnhccq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader campaign:ssmm loader persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220623-c1ad3sebd8/
Behaviour
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
Drops file in Program Files directory
Suspicious use of SetThreadContext
Deletes itself
Reads user/profile data of web browsers
Adds policy Run key to start application
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
a085cc0414093a69fe8a5109da41e79192b55473c5ef4e7f723d7414aa2406a3
MD5 hash:
85b4f6ec5d06bff0b8d14dff8d68f2d1
SHA1 hash:
d3b2cf6e30521ce30823e80f6f9dc6325fc82e71
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
XLoader
Create hunting rule
Link:
https://www.unpac.me/results/67ea4352-9359-48ce-89cc-28ec0fdb0e05/
Parent samples :
4260b49687d6bef3b282faa2fb1e8f8538f7955ec373d2e880d8ea107c309231
151572bec6e274bad481a8c0736a4888931c086f3fdf890be9811eae7c0c0c36
6b8466213cfa2d7f120183906a80aea5a5212c2da8c2ae9e2611cfb236b26817
7a1593a118811d3d4cdc85354b0d3cf4fd6b03fd4cc601392eb3a5372b4ae96f
7674b1787be3b12b07beaa2c2c82514a3c1e3d462e084f79c12cced99392b64b
aa992dc346d4da6630521bedd5c35c4f0c3ee2b7d118374b29a344e6fca96586
fab7efa769554cd5b6116b3f662c995aab4d54727f294cc842d4b07c921358d6
76ea1701d0adb2eca57550db609cbd372c9a5e85e40eab412cbba4ffe90e4b75
774e7baca6802b4d8cf3df0fd6162e1bac6dbfb5a4e50f09bc2d7c9e166b285e
4faae449552b88aec5358a81a7b24616d07d5002d0eeb4a9797ca38798f7144b
b3d7318934eff89f2847b40ff8a0cabc47510bf9fffe21b3c64e59a9ebcc8faa
2cdbcb8ec339711a3c5b4198c5360b4e606cdd1183019d73a10d54a829685563
fc8d8aae87bbcd5429e5f9389f80eeee170d696382f52942eea70ca82efbaeae
27b2b539c061e496c1baa6ff071e6ce1042ae4d77d398fd954ae1a62f9ad3885
467c0c7de63d27d7f72dada972546de08e4b8f590467babf1f7f9bc03e948ba2
54b9a3740468ce0736c3ef889c789460dc2f9b4c63209f6bbde7bf4e6b694d84
bf8ffcdf2f0764181b6c0f31a36141b0699a4a2fc1eb70728f5c42dcd034690e
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/67ea4352-9359-48ce-89cc-28ec0fdb0e05/
SH256 hash:
e3017ada35266bcf0d51532fe11e40293a6cc9e0184a8e1e2b53d35dd9073098
MD5 hash:
a77f6272a841863d321797177cac2f21
SHA1 hash:
271e87219136b843683cdc7b3c922a465459ddc2
Link:
https://www.unpac.me/results/67ea4352-9359-48ce-89cc-28ec0fdb0e05/
SH256 hash:
27b2b539c061e496c1baa6ff071e6ce1042ae4d77d398fd954ae1a62f9ad3885
MD5 hash:
1b5393505847dcd181ebbc23def363ca
SHA1 hash:
830edb007222442aa5c0883b5a2368f8da32acd1
Link:
https://www.unpac.me/results/67ea4352-9359-48ce-89cc-28ec0fdb0e05/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/27b2b539c061/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.54
Link:
https://yomi.yoroi.company/submissions/27b2b539c061e496c1baa6ff071e6ce1042ae4d77d398fd954ae1a62f9ad3885

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
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

Executable exe 27b2b539c061e496c1baa6ff071e6ce1042ae4d77d398fd954ae1a62f9ad3885

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/282478/

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