MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 628754b1e41101dabbd271cf25b161ea16873104ba6d3419314a8363b9a2e302. 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: 16


Intelligence 16 IOCs YARA 7 File information Comments
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SHA256 hash: 628754b1e41101dabbd271cf25b161ea16873104ba6d3419314a8363b9a2e302
SHA3-384 hash: 2e6c5fdf551fc1efc74f27c9a2d8a5a1109ee8913518bf084adb8c219aee44d8d1270f942356dd7a9bb995eb9e68e5c8
SHA1 hash: 8de1bc6a36907f927e5723077fa5cc65a444589a
MD5 hash: 193dcc8a9b069aafdbceaa0f36dca1fa
humanhash: cup-six-hot-idaho
File name:nHgrTEc1Q0tZEa7.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:853'504 bytes
First seen:2022-06-27 09:34:52 UTC
Last seen:2022-06-27 11:19:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:n1YivcYiOw9F0vw9FEY9lw9FDqRprllGIkgieIG14VYiOw9F0cYiDw9F0cYiOw9G:nFvSOGGvGDlGh6rllGzgikAOGGSDGGSC
TLSH T13B05121071C4A796D47F0BBA117051610779BBF62B62DE1E4E83A0EF0B6A7024B1DDEB
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)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
217
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
nHgrTEc1Q0tZEa7.exe
Verdict:
Malicious activity
Analysis date:
2022-06-22 06:27:07 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/7007a007-48ee-4297-b8dc-57f961795c78

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/283520/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62b97a0a49d6271f1a7f6f94/reports/d0a0e4a4-f4fd-41cd-8162-8f24547821bc/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/aa5fa389-f957-4364-b90a-6f6d984e9ea7
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1020309
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 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
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 652807 Sample: nHgrTEc1Q0tZEa7.exe Startdate: 27/06/2022 Architecture: WINDOWS Score: 100 36 www.motherloadpodcast.net 2->36 38 motherloadpodcast.net 2->38 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for URL or domain 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 7 other signatures 2->52 11 nHgrTEc1Q0tZEa7.exe 3 2->11         started        signatures3 process4 file5 34 C:\Users\user\...\nHgrTEc1Q0tZEa7.exe.log, ASCII 11->34 dropped 70 Tries to detect virtualization through RDTSC time measurements 11->70 15 nHgrTEc1Q0tZEa7.exe 11->15         started        signatures6 process7 signatures8 72 Modifies the context of a thread in another process (thread injection) 15->72 74 Maps a DLL or memory area into another process 15->74 76 Sample uses process hollowing technique 15->76 78 Queues an APC in another process (thread injection) 15->78 18 explorer.exe 15->18 injected process9 dnsIp10 40 www.baintsras.com 199.192.20.117, 49832, 80 NAMECHEAP-NETUS United States 18->40 42 www.penguinflys.com 172.80.98.79, 49813, 80 ESITEDUS United States 18->42 44 2 other IPs or domains 18->44 54 System process connects to network (likely due to code injection or exploit) 18->54 56 Performs DNS queries to domains with low reputation 18->56 58 Uses netsh to modify the Windows network and firewall settings 18->58 22 netsh.exe 1 12 18->22         started        signatures11 process12 signatures13 60 Creates an undocumented autostart registry key 22->60 62 Tries to steal Mail credentials (via file / registry access) 22->62 64 Tries to harvest and steal browser information (history, passwords, etc) 22->64 66 3 other signatures 22->66 25 cmd.exe 2 22->25         started        28 cmd.exe 1 22->28         started        process14 signatures15 68 Tries to harvest and steal browser information (history, passwords, etc) 25->68 30 conhost.exe 25->30         started        32 conhost.exe 28->32         started        process16
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/628754b1e41101dabbd271cf25b161ea16873104ba6d3419314a8363b9a2e302/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-06-22 06:28:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
52
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mkdvjmpecea5vo6sohhslmlb5iliomiexjwtigjrjkbwhonc4mba._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:o3t8 loader persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220627-lkbrmscad4/
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
Adds Run key to start application
Checks computer location settings
Deletes itself
Reads user/profile data of web browsers
Adds policy Run key to start application
Executes dropped EXE
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
bde4440629847215fff45e301f11d3dfb1e4c8482bbbcd973963d547a538e8b9
MD5 hash:
09c7fd3b97e1346ef68417cf50d79e7c
SHA1 hash:
c690a62de49ef4517750d35b49807df9223eed4f
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/ce96b0fb-2166-41a2-b0eb-0c7ec6007d67/
Parent samples :
628754b1e41101dabbd271cf25b161ea16873104ba6d3419314a8363b9a2e302
6a0dcd556658a1a64e9716c8ceccfab36406c8400e08f7b253d30de9ee13d0b8
0ae9215ce8e02834033615ac911c0b82abcc6809f95cb8b6cfbd1fdd96ab4bea
2a07b7a4dcebfe797400edbed8626749e59a8e8b729718202099a85b26db07ab
SH256 hash:
0cb6aef1fa57d11408e47ae071485ef8f48c2982997b8d74b47a4151d85b978c
MD5 hash:
843aa6edf83bff7b61c6a5369ef41e95
SHA1 hash:
d1bfeec8eaac9a1dacf2f7062ce964d8e7d77085
Link:
https://www.unpac.me/results/ce96b0fb-2166-41a2-b0eb-0c7ec6007d67/
SH256 hash:
d3c3d82ab26786e16e45dfa70bbc224f5201b395facc20236f620dec55f26188
MD5 hash:
763c4894caab6e53fae9424357d6257a
SHA1 hash:
c9a549180c909465fd8aa3891d87476edc3a78f2
Link:
https://www.unpac.me/results/ce96b0fb-2166-41a2-b0eb-0c7ec6007d67/
SH256 hash:
880c9ff80de33cde042ab26d75677dab18fdc7695908d615c44efa8b5d8e088a
MD5 hash:
07e1e5baea35d75e784cce3b991a5fdc
SHA1 hash:
2f5cd9ad4acec13ddb49f9d69093f9fe475342c2
Link:
https://www.unpac.me/results/ce96b0fb-2166-41a2-b0eb-0c7ec6007d67/
SH256 hash:
cd06dd042ae7c6c477ac00bb1c0abe9ffad47b54de1a83d4a7c2b54922b3e57f
MD5 hash:
96b3a163aa1a81f82a51a3e6c53fcb92
SHA1 hash:
1387bbe02ebf69a86602317e3f52005785f750c3
Link:
https://www.unpac.me/results/ce96b0fb-2166-41a2-b0eb-0c7ec6007d67/
SH256 hash:
628754b1e41101dabbd271cf25b161ea16873104ba6d3419314a8363b9a2e302
MD5 hash:
193dcc8a9b069aafdbceaa0f36dca1fa
SHA1 hash:
8de1bc6a36907f927e5723077fa5cc65a444589a
Link:
https://www.unpac.me/results/ce96b0fb-2166-41a2-b0eb-0c7ec6007d67/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/628754b1e41101dabbd271cf25b161ea16873104ba6d3419314a8363b9a2e302

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:exploit_any_poppopret
Create hunting rule
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
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 628754b1e41101dabbd271cf25b161ea16873104ba6d3419314a8363b9a2e302

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/283520/

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