MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e57304555042d5835094d3ee4cdbcfc713e089f1af6b6764c76673a43c34c971. 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: 17


Intelligence 17 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e57304555042d5835094d3ee4cdbcfc713e089f1af6b6764c76673a43c34c971
SHA3-384 hash: 6b226386ff2de89d6c9e752e7ec73d44809afcae4c15af09e44935ae26c62827c9bfe29bbe315b450ab839e729a4b180
SHA1 hash: b8056656c4b96077f9b9d2a6f40a75575bef887b
MD5 hash: 706eb90fef1f34788caf750a8de7c653
humanhash: march-iowa-four-single
File name:rock8943.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:242'483 bytes
First seen:2023-05-13 22:56:46 UTC
Last seen:2023-05-17 20:56:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:/Ya6QTt1So1muE5MiyizOAJ6x4daRzbmHhBtB/p90cuL5:/YmTt1L1mu67IRbmH7tBxOco
Threatray 2'899 similar samples on MalwareBazaar
TLSH T1A934126451A5C11BFA630B774D3A064A1F89A21764E0EA0F3B409ED9BE31AD1DF0F772
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter JaffaCakes118
Tags:FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
88
Origin country :
GB GB
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
rock8943.exe
Verdict:
Malicious activity
Analysis date:
2023-05-13 23:28:56 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/722b1556-9607-42e5-acd6-984655e6eefb

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/389215/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.67007809.31642.21535.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Unauthorized injection to a recently created process
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
comodo nemesis overlay packed remcos shell32.dll
Link:
https://www.filescan.io/uploads/646015ce93aacd0c82703e04/reports/076df3ad-541e-4298-8935-6451a670a6e6/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/e57304555042d5835094d3ee4cdbcfc713e089f1af6b6764c76673a43c34c971
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/92486527-67b4-45c1-9c90-f74412a9fdb0
Result
Threat name:
FormBook, NSISDropper
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1232361
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
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 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 FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 865341 Sample: rock8943.exe Startdate: 14/05/2023 Architecture: WINDOWS Score: 100 33 www.duncat.ru 2->33 41 Snort IDS alert for network traffic 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 8 other signatures 2->47 11 rock8943.exe 19 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\...\qglmmwxos.dll, PE32 11->31 dropped 55 Detected unpacking (changes PE section rights) 11->55 57 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 11->57 59 Maps a DLL or memory area into another process 11->59 61 Tries to detect virtualization through RDTSC time measurements 11->61 15 rock8943.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 18 explorer.exe 2 6 15->18 injected process9 dnsIp10 35 www.emjpurenaturalenterprise.com 188.114.96.7, 49700, 80 CLOUDFLARENETUS European Union 18->35 37 www.duncat.ru 194.67.112.46, 49699, 80 AS-REGRU Russian Federation 18->37 39 www.vhakololoholdings.africa 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 22 msiexec.exe 18->22         started        25 autochk.exe 18->25         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 27 cmd.exe 1 22->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e57304555042d5835094d3ee4cdbcfc713e089f1af6b6764c76673a43c34c971/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-05-12 13:46:20 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4vzqivkqilkygueu2pxezw6py4j6bcprv5vwozghmzz2ipbuzfyq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
520332210fa79a3628b8a514f18ba872117489cb013809161629d1443d8ae800
Formbook
8dbb132dccc8fb8a83062fec3840b1556a75862c07d22a0740ca095698ed0f6d
Formbook
9c1292869bf34d5077f8f2bffd19ff671a0dcd996734c3d8af1e484cac42d80d
Formbook
afbccae6537d0602edbc99ef03ec8b89ec23df241079f949c0b8a0aa6f9aa8f0
Formbook
d22aed126e64e2ca691c2b8779d7e18f557de18757ba56e265608890960cd09e
Formbook
f7bb2d35300a95c164089832c13410023d2293390130109ae3693fd0d05a3df8
Formbook
fdf0c7d08d92b27b19cd74779d71066a5605f3389421a4b9f3e50276ed7223ea
Formbook
fef348f0a51720ef524010b7225f6d338e10654e4fc13f4a6b89b07deafd35f7
Formbook
+ 2'889 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:t30k rat spyware stealer trojan
Link:
https://tria.ge/reports/230513-2xcsgacb5y/
Behaviour
Enumerates system info in registry
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
3069a191dbdfc53d6f6e6e059450324ce2a4fcfc2a5cb9f94362470357342ffc
MD5 hash:
efacd612a30a71c1c33b3fe1aa2e2511
SHA1 hash:
6dbb2605337af3e1cf611af8d663eecc13bbd49a
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/44c77e39-a193-44bd-baa9-a6d8ac999040/
Parent samples :
e57304555042d5835094d3ee4cdbcfc713e089f1af6b6764c76673a43c34c971
4ef92f7bf50bb9a4854a1992bc671e7f6ae86508582de84079099817524875d8
9ffd0fab2b4e2feca4aabe82f3da2f0621fdfab109a41020d42c749985ea67d8
SH256 hash:
e57304555042d5835094d3ee4cdbcfc713e089f1af6b6764c76673a43c34c971
MD5 hash:
706eb90fef1f34788caf750a8de7c653
SHA1 hash:
b8056656c4b96077f9b9d2a6f40a75575bef887b
Link:
https://www.unpac.me/results/44c77e39-a193-44bd-baa9-a6d8ac999040/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e57304555042/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/e57304555042d5835094d3ee4cdbcfc713e089f1af6b6764c76673a43c34c971

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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/389215/

Comments