MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31c332e155c0da98d365fa1e94ffc2de8494dee3b3c537db82e0545fc75b262b. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 31c332e155c0da98d365fa1e94ffc2de8494dee3b3c537db82e0545fc75b262b
SHA3-384 hash: 427b285b53cb60ed12610f9e9e07a4d1594e2c471b4ad143b4b6a36fa13ad01c32ef8a713a9f24c35632901842efb95f
SHA1 hash: 0d40c22e694dbb366f414d0e3428ed4552cecf73
MD5 hash: 50e852cd312af161a51a28904682b25c
humanhash: winner-charlie-quiet-wisconsin
File name:50e852cd312af161a51a28904682b25c.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:31'232 bytes
First seen:2022-06-14 08:28:54 UTC
Last seen:2022-06-14 10:00:36 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 768:Qmbz4Nf7oGFYwQ8XvLWRgcL0ST8iNxy2y:QmbzCF7XWRgcL9HNxvy
TLSH T1F4E2BF17F3948B3AD9710B756EB383004B74E552CD13DB7F78806A0B7E163A20992EB6
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 b28ccaacda53d39b (34 x Formbook, 1 x BitRAT, 1 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Formbook payload URL:
http://lambweston.ga/g/Qlygf_Zowasryt.png

Intelligence

File Origin
# of uploads :
2
# of downloads :
240
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
50e852cd312af161a51a28904682b25c.exe
Verdict:
Malicious activity
Analysis date:
2022-06-14 23:49:41 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/1aed9c22-8cfc-43ce-8fbb-b9b7b2d40176

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/279688/
Detection(s):
SecuriteInfo.com.Variant.Palevo.8.27087.23519.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Sending an HTTP GET request
Сreating synchronization primitives
DNS request
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/62a846e14d1ff31e31bdbc3a/reports/785b20c3-375d-43c6-a434-29c0bc5ba64a/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/372acc52-bbfd-4b8d-ade1-996aaeac9114
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1012692
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Machine Learning detection for dropped file
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
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 virtualization through RDTSC time measurements
Yara detected Costura Assembly Loader
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 645188 Sample: MmHE5C68Rw.exe Startdate: 14/06/2022 Architecture: WINDOWS Score: 100 44 www-bing-com.dual-a-0001.a-msedge.net 2->44 46 time.windows.com 2->46 48 dual-a-0001.dc-msedge.net 2->48 58 Snort IDS alert for network traffic 2->58 60 Multi AV Scanner detection for domain / URL 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 11 other signatures 2->64 10 MmHE5C68Rw.exe 15 7 2->10         started        signatures3 process4 dnsIp5 56 lambweston.ga 192.185.174.179, 49773, 80 UNIFIEDLAYER-AS-1US United States 10->56 38 C:\Users\user\AppData\Roaming\...\Rwdxydg.exe, PE32 10->38 dropped 40 C:\Users\user\...\Rwdxydg.exe:Zone.Identifier, ASCII 10->40 dropped 42 C:\Users\user\AppData\...\MmHE5C68Rw.exe.log, ASCII 10->42 dropped 74 Creates an undocumented autostart registry key 10->74 15 MSBuild.exe 10->15         started        18 cmd.exe 1 10->18         started        20 powershell.exe 15 10->20         started        file6 signatures7 process8 signatures9 76 Modifies the context of a thread in another process (thread injection) 15->76 78 Maps a DLL or memory area into another process 15->78 80 Sample uses process hollowing technique 15->80 82 2 other signatures 15->82 22 colorcpl.exe 15->22         started        25 explorer.exe 15->25 injected 28 conhost.exe 18->28         started        30 timeout.exe 1 18->30         started        32 conhost.exe 20->32         started        process10 dnsIp11 66 Modifies the context of a thread in another process (thread injection) 22->66 68 Maps a DLL or memory area into another process 22->68 70 Tries to detect virtualization through RDTSC time measurements 22->70 34 cmd.exe 1 22->34         started        50 chungketvinhomesspotlight.com 103.157.218.135, 49857, 80 TWIDC-AS-APTWIDCLimitedHK unknown 25->50 52 www.kozykornerpizza.com 185.53.177.50, 49864, 80 TEAMINTERNET-ASDE Germany 25->52 54 2 other IPs or domains 25->54 72 System process connects to network (likely due to code injection or exploit) 25->72 signatures12 process13 process14 36 conhost.exe 34->36         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/31c332e155c0da98d365fa1e94ffc2de8494dee3b3c537db82e0545fc75b262b/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2022-06-14 08:29:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
20 of 26 (76.92%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ghbtfykvydnjru3f7ipjj76c32cjjxxdwpctpw4c4bkf7r23eyvq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:s4s9 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220614-kdj9rshaf9/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
31c332e155c0da98d365fa1e94ffc2de8494dee3b3c537db82e0545fc75b262b
MD5 hash:
50e852cd312af161a51a28904682b25c
SHA1 hash:
0d40c22e694dbb366f414d0e3428ed4552cecf73
Link:
https://www.unpac.me/results/bf21fb8c-424a-46d7-ba90-139a84d6f681/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/31c332e155c0/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/31c332e155c0da98d365fa1e94ffc2de8494dee3b3c537db82e0545fc75b262b

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_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:meth_get_eip
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

File information

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

Web download

Formbook

Executable exe 31c332e155c0da98d365fa1e94ffc2de8494dee3b3c537db82e0545fc75b262b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2236930/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2237087/
Cape
Cape
https://www.capesandbox.com/analysis/279688/

Comments