MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf05a6c9248904af6ebb0a728f582c2ca34e11fe7cd9a2e4ebf876ea253256ad. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cf05a6c9248904af6ebb0a728f582c2ca34e11fe7cd9a2e4ebf876ea253256ad
SHA3-384 hash: 479732bf564f79dc50fa29d37f56e9b682a23d117813e0e59f90704009461a1f7e3d92e1ff83c89aa2cb5e871222d00d
SHA1 hash: 171bffc0607fdfc36da87e1580715d2b528e0801
MD5 hash: ce725bbb287654c9fbcdfe25bf2be6f5
humanhash: oklahoma-lion-triple-india
File name:cf05a6c9248904af6ebb0a728f582c2ca34e11fe7cd9a2e4ebf876ea253256ad
Download: download sample
Signature Formbook
Create hunting rule
File size:281'993 bytes
First seen:2023-03-15 22:42:27 UTC
Last seen:2023-03-16 07:48:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:/Ya6aj9sRDkbmv7L3lzCB3cx+QjpxvRbklHanHMFJ:/YsjyxkbWNCtcx+QPRan
Threatray 2'276 similar samples on MalwareBazaar
TLSH T1EF5412543BE8C07BE7620A3209791A1E5FF679221063569F57702F597C620D2EA0FBA3
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 Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
231
Origin country :
US US
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
cf05a6c9248904af6ebb0a728f582c2ca34e11fe7cd9a2e4ebf876ea253256ad
Verdict:
Malicious activity
Analysis date:
2023-03-15 22:45:50 UTC
Tags:
stealer formbook trojan
Link:
https://app.any.run/tasks/a3f97fcf-19ba-440c-9237-14c533c930f5

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/374648/
Detection(s):
Sanesecurity.Malware.28885.BadCo.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process
Searching for synchronization primitives
Searching for the window
Creating a file in the %temp% directory
Creating a window
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/73316/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
babar comodo formbook guloader overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/641249f7d86839d607a8d3f7/reports/382b6244-feb9-4465-ab7c-616ef2220bba/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/cf05a6c9248904af6ebb0a728f582c2ca34e11fe7cd9a2e4ebf876ea253256ad
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/e93a54f2-17b4-4358-814e-03d90988fd41
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1194611
Signature
Antivirus detection for URL or domain
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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
Performs DNS queries to domains with low reputation
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 harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 827512 Sample: PUqT3VrH7u.exe Startdate: 15/03/2023 Architecture: WINDOWS Score: 100 33 Snort IDS alert for network traffic 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus detection for URL or domain 2->37 39 3 other signatures 2->39 9 PUqT3VrH7u.exe 19 2->9         started        process3 file4 25 C:\Users\user\AppData\Local\Temp\ylrwvf.exe, PE32 9->25 dropped 12 ylrwvf.exe 9->12         started        process5 signatures6 53 Multi AV Scanner detection for dropped file 12->53 55 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 12->55 57 Maps a DLL or memory area into another process 12->57 15 ylrwvf.exe 12->15         started        process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 Queues an APC in another process (thread injection) 15->65 18 explorer.exe 1 1 15->18 injected process9 dnsIp10 27 bohndigitaltech.com 162.241.24.110, 49703, 49704, 80 UNIFIEDLAYER-AS-1US United States 18->27 29 kunimi.org 219.94.129.181, 49698, 49699, 80 SAKURA-CSAKURAInternetIncJP Japan 18->29 31 15 other IPs or domains 18->31 41 System process connects to network (likely due to code injection or exploit) 18->41 43 Performs DNS queries to domains with low reputation 18->43 22 control.exe 13 18->22         started        signatures11 process12 signatures13 45 Tries to steal Mail credentials (via file / registry access) 22->45 47 Tries to harvest and steal browser information (history, passwords, etc) 22->47 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cf05a6c9248904af6ebb0a728f582c2ca34e11fe7cd9a2e4ebf876ea253256ad/
Threat name:
Win32.Trojan.NSISInject
Create hunting rule
Status:
Malicious
First seen:
2023-03-15 14:53:37 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=z4c2nsjereck63v3bjzi6wbmfsru4ep6ptm2fzhl7b3oujjsk2wq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
128505a47c9f43ff7ee232ae8e617756b0fc1bef2548dd893245514008dfbe58
Formbook
1583037e8ed80b3e80955da8e0138cbce6faf0fd0df77f50c7551d290ec67f2d
Formbook
1682bd22bd27dd3a278554973648ee1bc62d456a029aefb95ec7dcecdb23e235
Formbook
4adcc8ef0f0f441cf8e44f0c3c446f620409dbf79353811fa4d6526c6752f6ae
Formbook
ad8fd0b0690db382dc13e6e8a7365581877af214c39ca5dd673b8cea760e8891
Formbook
b819e0dd1a5dc229d16fa74251262ce7fdd7581a71f66c9dec61149a7c4c7a76
Formbook
bcfc27ac62a86bb98e019ba5eb2c6032fd5a56f6aacee84974b07217c2c1fe7f
Formbook
cc83e0a51f3dcd04a4c9b1a2ba3049227459cac541da52b518ee5ebcfbed4796
Formbook
e0917d732b7c34e4ff60f30a9115ad84dbf3eb15be3301db9bb7297f1ac8581c
Formbook
e904274bd2e5d919c63c6db8c82f908abc10d65fdba772596e2953ab708b1726
Formbook
+ 2'266 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/230315-2m8gdsff86/
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
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Blocklisted process makes network request
Unpacked files
SH256 hash:
f8816454df8c7a338c47115575d1f3e1a952c8b6db0f57e46fa4381be9b16911
MD5 hash:
9256107151a9881eeb2524a18f3beae2
SHA1 hash:
342ea33bc8429ff1a710f9d4b1ada72fd1bde261
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/20c1c6e3-e126-4f54-9ad0-90ac5bd1278c/
Parent samples :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 hash:
e04ae3656e18bbe8a8b43197f9cd86f672d7bb265446fe1fea60ac4424b9ac1e
MD5 hash:
ec97b39b3847b7636b6ff582f06c4b35
SHA1 hash:
3ec99e698e9659f9c398bfb7cf064e4af16efadb
Link:
https://www.unpac.me/results/20c1c6e3-e126-4f54-9ad0-90ac5bd1278c/
SH256 hash:
047490e99ff58c9056bcde3c21ae01e52c5bf1013eee403d2c99eeaa84bf54be
MD5 hash:
876cde832e5c27a61c50248386952700
SHA1 hash:
0ae09e882c3472eeaa67e35e89168350b19642b6
Link:
https://www.unpac.me/results/20c1c6e3-e126-4f54-9ad0-90ac5bd1278c/
SH256 hash:
cf05a6c9248904af6ebb0a728f582c2ca34e11fe7cd9a2e4ebf876ea253256ad
MD5 hash:
ce725bbb287654c9fbcdfe25bf2be6f5
SHA1 hash:
171bffc0607fdfc36da87e1580715d2b528e0801
Link:
https://www.unpac.me/results/20c1c6e3-e126-4f54-9ad0-90ac5bd1278c/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cf05a6c92489/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/cf05a6c9248904af6ebb0a728f582c2ca34e11fe7cd9a2e4ebf876ea253256ad

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

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/374648/

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