MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fd4b7a99c9e1425af888702bce5c88c071edfd4e0d1cbae52aa4c637b7fde738. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fd4b7a99c9e1425af888702bce5c88c071edfd4e0d1cbae52aa4c637b7fde738
SHA3-384 hash: 40d779e37998c591452f0cbfb70703f182150d67e6181fcdb67a477d35c2b00053c6a18f05ee413a1dbca4bdf3075fcc
SHA1 hash: bb48bdaeaf3bb2173d34e20995297a87aaef0afa
MD5 hash: f747fd55f18cbfe63505b8e597fcd47f
humanhash: ink-washington-idaho-vegan
File name:rSOLARITEMS.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'149'440 bytes
First seen:2023-03-09 10:45:17 UTC
Last seen:2023-03-09 12:42:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:FuOZ6wGkB+e9uf8mSFOAGYP8d9mTpNRaHvmLbokha:smOAJ49i8OQ
Threatray 2'318 similar samples on MalwareBazaar
TLSH T17A355A92E9995D5FEA13CB3A5333580D21671D25F23DACE61C78F1A62BF26830721837
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon d2c2004e56525344 (1 x Formbook)
Reporter FXOLabs
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
242
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
rSOLARITEMS.exe
Verdict:
Malicious activity
Analysis date:
2023-03-09 10:47:57 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/75e99f7b-1fab-4b27-8e2f-3715034b6a48

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/372955/
Detection(s):
SecuriteInfo.com.Trojan.Siggen20.144.9472.32484.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Launching a process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6409b8eb8b48bcea611faa7c/reports/f4dc8062-f9bf-4d5e-a7c5-b93739f4eba7/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/fd4b7a99c9e1425af888702bce5c88c071edfd4e0d1cbae52aa4c637b7fde738
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b9910a65-9318-479e-b1b9-18f816665287
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1190254
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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)
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
Sigma detected: Scheduled temp file as task from temp location
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 823129 Sample: rSOLARITEMS.exe Startdate: 09/03/2023 Architecture: WINDOWS Score: 100 58 www.baishengyx.net 2->58 80 Malicious sample detected (through community Yara rule) 2->80 82 Antivirus detection for URL or domain 2->82 84 Sigma detected: Scheduled temp file as task from temp location 2->84 86 5 other signatures 2->86 11 rSOLARITEMS.exe 7 2->11         started        15 PaZrWlJxxd.exe 5 2->15         started        signatures3 process4 dnsIp5 50 C:\Users\user\AppData\...\PaZrWlJxxd.exe, PE32 11->50 dropped 52 C:\Users\...\PaZrWlJxxd.exe:Zone.Identifier, ASCII 11->52 dropped 54 C:\Users\user\AppData\Local\...\tmp3AF6.tmp, XML 11->54 dropped 56 C:\Users\user\AppData\...\rSOLARITEMS.exe.log, ASCII 11->56 dropped 94 Uses schtasks.exe or at.exe to add and modify task schedules 11->94 96 Adds a directory exclusion to Windows Defender 11->96 98 Tries to detect virtualization through RDTSC time measurements 11->98 18 rSOLARITEMS.exe 11->18         started        21 powershell.exe 19 11->21         started        23 schtasks.exe 1 11->23         started        60 192.168.2.1 unknown unknown 15->60 100 Multi AV Scanner detection for dropped file 15->100 102 Machine Learning detection for dropped file 15->102 104 Injects a PE file into a foreign processes 15->104 25 PaZrWlJxxd.exe 15->25         started        27 schtasks.exe 1 15->27         started        29 PaZrWlJxxd.exe 15->29         started        file6 signatures7 process8 signatures9 72 Modifies the context of a thread in another process (thread injection) 18->72 74 Maps a DLL or memory area into another process 18->74 76 Sample uses process hollowing technique 18->76 78 Queues an APC in another process (thread injection) 18->78 31 explorer.exe 1 18->31 injected 35 conhost.exe 21->35         started        37 conhost.exe 23->37         started        39 conhost.exe 27->39         started        process10 dnsIp11 62 essenceerp.com 209.105.239.43, 49702, 80 ZC38-AS1US United States 31->62 64 www.jewelryoutletswm.com 31->64 66 www.essenceerp.com 31->66 68 System process connects to network (likely due to code injection or exploit) 31->68 70 Uses ipconfig to lookup or modify the Windows network settings 31->70 41 systray.exe 31->41         started        44 ipconfig.exe 31->44         started        signatures12 process13 signatures14 88 Modifies the context of a thread in another process (thread injection) 41->88 90 Maps a DLL or memory area into another process 41->90 92 Tries to detect virtualization through RDTSC time measurements 41->92 46 cmd.exe 1 41->46         started        process15 process16 48 conhost.exe 46->48         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fd4b7a99c9e1425af888702bce5c88c071edfd4e0d1cbae52aa4c637b7fde738/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-03-09 09:21:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7vfxvgoj4fbfv6eioav44xeiyby637kobuolvzjkutddpn75444a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
200100b843cccd6b1fc8f2455de2d6069aa6272b3b2d94e805ee72d08bbfd665
Formbook
5bdac8b30125850db84f9c3dceee1dfbbbc67e1ca5501cf678e14b835f38000c
Formbook
6b5b7952bdd33c6b92105d81a2211e7a2f907b89fd0a76c344db8ded9dc36802
Formbook
6c16d294d574746cc94efbd7c946f73381bb1c857ba468ce37b8c672fa1faf57
Formbook
a2bc978e30782179dc78f41866e3933bc0e76b0d18aa24bbc22733cf1cb9cc5f
Formbook
ad8fd0b0690db382dc13e6e8a7365581877af214c39ca5dd673b8cea760e8891
Formbook
c9caca736c11e851b592f24322879f830096ef056283ab000c73fea48642278b
Formbook
dbe3f374ece034f9fcfce5ea34796ca35fb13e1a6d929d708ea74a14357676df
Formbook
ee62bac96fdf6c8fa0bf931f53a9858584cbe77e814f3e0a08a9a0fcb1fe55f3
Formbook
fb1ccc21ef84112ec41d904546fa6e35c0ee0ff48626b68dd2d1839f77a4b508
Formbook
+ 2'308 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ny18 rat spyware stealer trojan
Link:
https://tria.ge/reports/230309-mtys7sah4v/
Behaviour
Creates scheduled task(s)
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
Checks computer location settings
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
abcfcf5918f1c06c5f938a9b8155a5d06dce174f67e4bbfedc23a558e007fd11
MD5 hash:
32268cdcaa7ab7cd89432e2bcf092931
SHA1 hash:
20318db7665ecb84a42231778e9203b7d883edbb
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/b964cb08-8c62-4139-9607-b8e9fa7f7934/
Parent samples :
fd4b7a99c9e1425af888702bce5c88c071edfd4e0d1cbae52aa4c637b7fde738
323f73b7cd367686fdc28a770469e6f6b3b1e45b6f375ef836bd3636880a102c
SH256 hash:
57c9f486be687ebc08a756e5fd750fc63f3f3b8892b46508589ecfd2b69c9eca
MD5 hash:
cd7051e0594ee4d89521baffc7693b41
SHA1 hash:
9b7ee6f1bc68f29807b96c7487b12c751cff427b
Link:
https://www.unpac.me/results/b964cb08-8c62-4139-9607-b8e9fa7f7934/
SH256 hash:
d06df7395d561e198f9b7c5481567116ff2e4c2e84437c018d2a2c8ea6c4ca37
MD5 hash:
0fb6061f7d37424fb9e6d0e76b019c19
SHA1 hash:
98a64bf7b459f032d6ec5793003bf61b5ae1dd74
Link:
https://www.unpac.me/results/b964cb08-8c62-4139-9607-b8e9fa7f7934/
Parent samples :
495607b1aef01bf7dfb64b5cb16a8fc0f161c2923627d71c69de97328f8eca3f
2434aa78b46a3afc98fa6e888c3eb56278ba52b0ff800e7e875af9c2e7f9011a
SH256 hash:
85e9fbc42119b975f189f1c1c7c2f42dff76c294063825482b2f118dc8a07e69
MD5 hash:
09519673184b0085847ab5ebcced7fd9
SHA1 hash:
92ffbb410402f5a4d1554a1943f4c370435f1cd0
Link:
https://www.unpac.me/results/b964cb08-8c62-4139-9607-b8e9fa7f7934/
SH256 hash:
7c21c3740260f3e140c2383f146a02dc7b73c1723400d3cfb8f826ef0e268793
MD5 hash:
b2b66c323859eaf5c10e387e58fee77c
SHA1 hash:
30dc35ed6a308c6ac86a5cb00a83b9798b153d86
Link:
https://www.unpac.me/results/b964cb08-8c62-4139-9607-b8e9fa7f7934/
SH256 hash:
fd4b7a99c9e1425af888702bce5c88c071edfd4e0d1cbae52aa4c637b7fde738
MD5 hash:
f747fd55f18cbfe63505b8e597fcd47f
SHA1 hash:
bb48bdaeaf3bb2173d34e20995297a87aaef0afa
Link:
https://www.unpac.me/results/b964cb08-8c62-4139-9607-b8e9fa7f7934/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fd4b7a99c9e1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/fd4b7a99c9e1425af888702bce5c88c071edfd4e0d1cbae52aa4c637b7fde738

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
Create hunting rule
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

Executable exe fd4b7a99c9e1425af888702bce5c88c071edfd4e0d1cbae52aa4c637b7fde738

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/372955/

Comments