MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9c16b8c4e8821ebc5a1464e2032ec7ee107d9d873de7ea07cf42778d307fe751. 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: 11


Intelligence 11 IOCs YARA 5 File information Comments
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SHA256 hash: 9c16b8c4e8821ebc5a1464e2032ec7ee107d9d873de7ea07cf42778d307fe751
SHA3-384 hash: 37fff21bcc487a8ce2debb7a62af4b4fdc4607f4009ffb960d1ea3146727366a2a0aaf2faa104a133d49317c840cccb8
SHA1 hash: b269501d2479018e7538468ebfa4e51fdb1d99ed
MD5 hash: 5dd6a8126578f33268b51223adc18f84
humanhash: emma-social-equal-missouri
File name:doc0987654345678900987654 .exe
Download: download sample
Signature Formbook
Create hunting rule
File size:18'944 bytes
First seen:2022-08-29 06:21:03 UTC
Last seen:2022-08-30 13:15:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'743 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 192:uET2bhYcLLoDo8qRcOB8t/H1d3YUziJ2hLD/+:xT2bh9LLoDSCzF/P/
Threatray 14'071 similar samples on MalwareBazaar
TLSH T1D582A65273A8C66DE6E95B7928730385067BBE10B631CE2DD4D8701F8DB32C185527E3
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 991d754d4d554569 (4 x Formbook, 1 x AgentTesla)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
250
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
doc0987654345678900987654 .exe
Verdict:
Malicious activity
Analysis date:
2022-08-29 06:22:10 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/ce971132-8bd7-4f54-9f60-c15a7ccbaaff

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/302043/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.10124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
Searching for synchronization primitives
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/630c5b832fdf5a0825904bc9/reports/363a748d-cdf2-427f-b9af-24b581699cf0/overview
Result
Verdict:
SUSPICIOUS
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:
Quasar RAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f3f90c06-8c41-4c1c-8af2-98554e937219
Result
Threat name:
AsyncRAT, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1059551
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses an obfuscated file name to hide its real file extension (a lot of spaces)
Writes to foreign memory regions
Yara detected AsyncRAT
Yara detected FormBook
Yara detected Generic Downloader
Yara detected MSILDownloaderGeneric
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 692068 Sample: doc0987654345678900987654  ... Startdate: 29/08/2022 Architecture: WINDOWS Score: 100 60 Malicious sample detected (through community Yara rule) 2->60 62 Antivirus detection for URL or domain 2->62 64 Multi AV Scanner detection for submitted file 2->64 66 10 other signatures 2->66 10 doc0987654345678900987654                                                                   .exe 16 7 2->10         started        process3 dnsIp4 58 cdn.discordapp.com 162.159.134.233, 443, 49745, 49763 CLOUDFLARENETUS United States 10->58 46 C:\Users\user\AppData\...\Hfprkhme.exe, PE32 10->46 dropped 48 C:\Users\...\Hfprkhme.exe:Zone.Identifier, ASCII 10->48 dropped 50 doc098765434567890...           .exe.log, ASCII 10->50 dropped 78 Encrypted powershell cmdline option found 10->78 80 Writes to foreign memory regions 10->80 82 Injects a PE file into a foreign processes 10->82 15 InstallUtil.exe 10->15         started        18 powershell.exe 18 10->18         started        file5 signatures6 process7 signatures8 84 Modifies the context of a thread in another process (thread injection) 15->84 86 Maps a DLL or memory area into another process 15->86 88 Queues an APC in another process (thread injection) 15->88 20 explorer.exe 15->20 injected 23 conhost.exe 18->23         started        process9 dnsIp10 52 192.168.2.1 unknown unknown 20->52 25 Hfprkhme.exe 14 4 20->25         started        29 Hfprkhme.exe 3 20->29         started        process11 dnsIp12 54 cdn.discordapp.com 25->54 68 Multi AV Scanner detection for dropped file 25->68 70 Machine Learning detection for dropped file 25->70 72 Encrypted powershell cmdline option found 25->72 31 InstallUtil.exe 25->31         started        34 powershell.exe 25->34         started        56 cdn.discordapp.com 29->56 74 Writes to foreign memory regions 29->74 76 Injects a PE file into a foreign processes 29->76 36 powershell.exe 29->36         started        38 InstallUtil.exe 29->38         started        40 InstallUtil.exe 29->40         started        signatures13 process14 signatures15 90 Modifies the context of a thread in another process (thread injection) 31->90 92 Maps a DLL or memory area into another process 31->92 42 conhost.exe 34->42         started        44 conhost.exe 36->44         started        process16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9c16b8c4e8821ebc5a1464e2032ec7ee107d9d873de7ea07cf42778d307fe751/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-08-29 05:49:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
21 of 25 (84.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tqllrrhiqiplywqumtraglwh5yih3hmhhxt6ub6pij3y2md745iq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
00c0934af824603bef01ce8a5d9fcbd0e97432c877d40cade42fdffdfb5175e0
Formbook
1dcab4cdffdf269ea33719990ac81c515345b50fe1c60a3fe7e47d1a59fb7cc0
Formbook
469e2d368652b3fd0eac3dfb416cb617b5f5253c87e2a381805c64d1c04e9060
Formbook
55b0a37a4f1052226d668680a2c0fcee431da34adccd38811f34eb008c145389
Formbook
59da950a2dd3a562e305d2b810d169fb9abe9a11928ad014cbdc87d657b32ca3
Formbook
7b8c63fc9564c82db7c23fcf523fea4e7e69de4ef7dbc5c2b3bb06a7491b4f26
Formbook
a01cf716ce945824cf5cfaa67b4c62b3e1bd082416279411b18396fd51a5c54b
Formbook
b83bd4cd39063ee7b3cb339b94d202d0af8e70ae5f047a515e527e51a634e1ea
Formbook
d75dc356d01a2304e91b6feb17b3637ea428d204335aa44ff7f9275b173c4f89
Formbook
ef8351385a327e1883639d1fc36d8e806f4d9f601e4630912763611b16213bb0
Formbook
+ 14'061 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
persistence
Link:
https://tria.ge/reports/220829-g4ce3aeah3/
Behaviour
Enumerates system info in registry
Gathers network information
Modifies Internet Explorer settings
Modifies system certificate store
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
Unpacked files
SH256 hash:
9c16b8c4e8821ebc5a1464e2032ec7ee107d9d873de7ea07cf42778d307fe751
MD5 hash:
5dd6a8126578f33268b51223adc18f84
SHA1 hash:
b269501d2479018e7538468ebfa4e51fdb1d99ed
Link:
https://www.unpac.me/results/c9a098d5-3939-4e4e-8d72-b796c9e7aac1/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/9c16b8c4e882/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/9c16b8c4e8821ebc5a1464e2032ec7ee107d9d873de7ea07cf42778d307fe751

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_SUSPICIOUS_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Discord_Attachments_URL
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an Discord Attachments URL. This is often used by Malware to download further payloads
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Create hunting rule
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

File information

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

Malspam

Formbook

img 5c9f74fcde21bf57e48d027a42d6fd1966e1111ccdeeb0ea9092fbc021c9bd21

Formbook

Executable exe 9c16b8c4e8821ebc5a1464e2032ec7ee107d9d873de7ea07cf42778d307fe751

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/302043/
  
Dropped by
SHA256 5c9f74fcde21bf57e48d027a42d6fd1966e1111ccdeeb0ea9092fbc021c9bd21
  
Dropped by
MD5 598000e1ab79990a885c63136db8c0f2

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