MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f62abb12b617c2d02a803a656ec77887dda201942859ad15a9499de4c28ea2aa. 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 2 File information Comments
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SHA256 hash: f62abb12b617c2d02a803a656ec77887dda201942859ad15a9499de4c28ea2aa
SHA3-384 hash: 38dc0381088f79533408c553daf1fce97ce141c4cc0e62f7c03eeffc6089b97f2a289d4d56220108c67027952d349536
SHA1 hash: fcdcbd8fe188e03d30a912334374367c994410e2
MD5 hash: 18807f34327db3bcb1382d3dc27cbba9
humanhash: single-oklahoma-cat-texas
File name:SOA'MAY22.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:59'904 bytes
First seen:2022-06-02 08:31:44 UTC
Last seen:2022-06-03 13:34:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 384:JU3dVFbmqxubQ3HqcbVSRAg+ePNIHRI5DsVPMwrYuJM43nDpJdR8v0OnxONaZDWb:J9bN+KEHP/TgSZc5/ELK
TLSH T1F34395A1D28D7CE9D41741F9AC79EA40201AF74A443D4E19B9B7B41AA4B76C334B3E0F
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 d8f2e4ccd4d4d4d4 (9 x AgentTesla, 2 x Formbook, 1 x a310Logger)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
4
# of downloads :
330
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
SOA'MAY22.exe
Verdict:
Malicious activity
Analysis date:
2022-06-02 09:01:38 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/e3305fbc-6a5f-4b17-b511-20dd293c937d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.27821.19597.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
Forced system process termination
Running batch commands
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed wacatac
Link:
https://www.filescan.io/uploads/629875bf961acffe543f09aa/reports/ab0e12a9-fcd4-44eb-bc99-19175cb9b49f/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f8abb424-b274-44ad-a623-f23089a74433
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1005588
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 638083 Sample: SOA'MAY22.exe Startdate: 02/06/2022 Architecture: WINDOWS Score: 100 85 www.bluechipblog.com 2->85 103 Snort IDS alert for network traffic 2->103 105 Multi AV Scanner detection for domain / URL 2->105 107 Found malware configuration 2->107 109 9 other signatures 2->109 11 SOA'MAY22.exe 16 7 2->11         started        16 Qmcalzi.exe 14 4 2->16         started        signatures3 process4 dnsIp5 87 52.59.30.24, 49714, 49755, 49756 AMAZON-02US United States 11->87 77 C:\Users\user\AppData\Roaming\...\Qmcalzi.exe, PE32 11->77 dropped 79 C:\Users\user\...\Qmcalzi.exe:Zone.Identifier, ASCII 11->79 dropped 81 C:\Users\user\AppData\...\SOA'MAY22.exe.log, ASCII 11->81 dropped 127 Writes to foreign memory regions 11->127 129 Allocates memory in foreign processes 11->129 131 Injects a PE file into a foreign processes 11->131 18 BackgroundTransferHost.exe 13 11->18         started        20 InstallUtil.exe 11->20         started        23 InstallUtil.exe 11->23         started        31 4 other processes 11->31 133 Multi AV Scanner detection for dropped file 16->133 25 InstallUtil.exe 16->25         started        27 cmd.exe 16->27         started        29 powershell.exe 16->29         started        file6 signatures7 process8 signatures9 33 explorer.exe 18->33 injected 111 Modifies the context of a thread in another process (thread injection) 20->111 113 Maps a DLL or memory area into another process 20->113 115 Sample uses process hollowing technique 20->115 117 Queues an APC in another process (thread injection) 20->117 119 Tries to detect virtualization through RDTSC time measurements 23->119 36 conhost.exe 27->36         started        38 timeout.exe 27->38         started        40 conhost.exe 29->40         started        42 conhost.exe 31->42         started        44 conhost.exe 31->44         started        46 timeout.exe 1 31->46         started        process10 signatures11 89 Uses netstat to query active network connections and open ports 33->89 48 Qmcalzi.exe 3 33->48         started        52 colorcpl.exe 33->52         started        54 cmmon32.exe 33->54         started        56 NETSTAT.EXE 33->56         started        process12 dnsIp13 83 192.168.2.1 unknown unknown 48->83 91 Writes to foreign memory regions 48->91 93 Allocates memory in foreign processes 48->93 95 Injects a PE file into a foreign processes 48->95 58 InstallUtil.exe 48->58         started        61 cmd.exe 48->61         started        63 powershell.exe 48->63         started        67 2 other processes 48->67 97 Modifies the context of a thread in another process (thread injection) 52->97 99 Maps a DLL or memory area into another process 52->99 101 Tries to detect virtualization through RDTSC time measurements 52->101 65 cmd.exe 52->65         started        signatures14 process15 signatures16 121 Modifies the context of a thread in another process (thread injection) 58->121 123 Maps a DLL or memory area into another process 58->123 125 Sample uses process hollowing technique 58->125 69 conhost.exe 61->69         started        71 timeout.exe 61->71         started        73 conhost.exe 63->73         started        75 conhost.exe 65->75         started        process17
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/f62abb12b617c2d02a803a656ec77887dda201942859ad15a9499de4c28ea2aa/
Threat name:
ByteCode-MSIL.Downloader.Seraph
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Status:
Malicious
First seen:
2022-06-02 04:30:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
18 of 26 (69.23%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6yvlwevwc7bnakuahjsw5r3yq7o2eamufbm22fnjjgo6jquoukva._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:fs44 persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220602-ke97ksaahr/
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
Adds Run key to start application
Checks computer location settings
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
f62abb12b617c2d02a803a656ec77887dda201942859ad15a9499de4c28ea2aa
MD5 hash:
18807f34327db3bcb1382d3dc27cbba9
SHA1 hash:
fcdcbd8fe188e03d30a912334374367c994410e2
Link:
https://www.unpac.me/results/397f75db-fde0-4a77-9d39-e6cec3e9cb69/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f62abb12b617/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/f62abb12b617c2d02a803a656ec77887dda201942859ad15a9499de4c28ea2aa

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:pe_imphash
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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.

Malspam

Formbook

zip 8978823173307fd3301e5ce8a82229a10d477e5a2f320061d7e1f6bd63a98ed6

Formbook

Executable exe f62abb12b617c2d02a803a656ec77887dda201942859ad15a9499de4c28ea2aa

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 8978823173307fd3301e5ce8a82229a10d477e5a2f320061d7e1f6bd63a98ed6
  
Dropped by
MD5 1b85be5de269bf1aff166f8c701d3069

Comments