MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 988d2c306698b469a52c807a28fbd030868b108458ed2b72e6f776f2ed933703. 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: 10


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 988d2c306698b469a52c807a28fbd030868b108458ed2b72e6f776f2ed933703
SHA3-384 hash: ba38f4d0937266f4cf01f5b5843ccb6028770c32c00c508b3a58cda7f1f1d870f596c7b2631ce915bdb951371c5b5a3f
SHA1 hash: 57c7fb9804ba3fa064fac0a78cb5cfeb7b9d10c2
MD5 hash: 2f159c22c90f5cbddfdba3455f2aa94e
humanhash: colorado-equal-lake-three
File name:2f159c22c90f5cbddfdba3455f2aa94e.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:582'144 bytes
First seen:2020-10-02 11:07:04 UTC
Last seen:2020-10-02 11:57:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'472 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:efll3msRDZti+FF2WoYX0FvSYHWQaHlgxbMypeUtTX:CjW0N3j2Q0FBxheUt
Threatray 3'428 similar samples on MalwareBazaar
TLSH CAC42363F9FD4872E1220730209DF915AF72CF493B6E935E26ED330A50AB144BE5216A
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
118
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/67736/
Detection(s):
SecuriteInfo.com.BehavesLike.Win32.Generic.hc.16763.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a recently created process
Result
Threat name:
Nanocore FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/480169
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected FormBook
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 292524 Sample: d6qw9Ak1RC.exe Startdate: 02/10/2020 Architecture: WINDOWS Score: 100 78 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->78 80 Found malware configuration 2->80 82 Malicious sample detected (through community Yara rule) 2->82 84 10 other signatures 2->84 11 d6qw9Ak1RC.exe 6 2->11         started        15 RegAsm.exe 2->15         started        17 dhcpmon.exe 2->17         started        process3 file4 70 C:\Users\user\AppData\Roaming\...\Uulebo.exe, PE32 11->70 dropped 72 C:\Users\user\AppData\...\d6qw9Ak1RC.exe.log, ASCII 11->72 dropped 96 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->96 19 Uulebo.exe 1 5 11->19         started        24 conhost.exe 15->24         started        26 conhost.exe 17->26         started        signatures5 process6 dnsIp7 74 192.168.2.1 unknown unknown 19->74 68 C:\Users\user\AppData\Roaming\bin.exe, PE32 19->68 dropped 86 Multi AV Scanner detection for dropped file 19->86 88 Machine Learning detection for dropped file 19->88 90 Sample uses process hollowing technique 19->90 92 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->92 28 bin.exe 19->28         started        31 RegAsm.exe 1 14 19->31         started        35 RegAsm.exe 19->35         started        file8 signatures9 process10 dnsIp11 98 Antivirus detection for dropped file 28->98 100 Multi AV Scanner detection for dropped file 28->100 102 Machine Learning detection for dropped file 28->102 106 5 other signatures 28->106 37 explorer.exe 1 28->37 injected 76 194.5.97.179, 4488, 49761 DANILENKODE Netherlands 31->76 62 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 31->62 dropped 64 C:\Users\user\AppData\Local\...\tmpB208.tmp, XML 31->64 dropped 66 C:\Program Files (x86)\...\dhcpmon.exe, PE32 31->66 dropped 104 Hides that the sample has been downloaded from the Internet (zone.identifier) 31->104 39 schtasks.exe 1 31->39         started        41 schtasks.exe 31->41         started        file12 signatures13 process14 process15 43 cmstp.exe 37->43         started        46 dhcpmon.exe 37->46         started        48 Uulebo.exe 37->48         started        50 Uulebo.exe 37->50         started        52 conhost.exe 39->52         started        54 conhost.exe 41->54         started        signatures16 94 Tries to detect virtualization through RDTSC time measurements 43->94 56 cmd.exe 43->56         started        58 conhost.exe 46->58         started        process17 process18 60 conhost.exe 56->60         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/988d2c306698b469a52c807a28fbd030868b108458ed2b72e6f776f2ed933703/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-02 09:14:48 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tcgsymdgtc2gtjjmqb5cr66qgcdiweeeldwsw4xg653pf3mtg4bq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
formbook
Create hunting rule
Similar samples:
02296010035b93a3435b5b06a9af1f2715310bcf370918cd80114b18fae780b6
FormBook
0d59116557f0c4cf0f52239edbc0a9569489279bbe45a690597d9dd8a2401886
FormBook
16de0aa2d02fae6460bb173c9104df4fa758343ab226aea79a3910dce19fa58e
FormBook
347aa505ad319b4d8ee54aabe34dfc2af12b4747af23c6b635821ba9aedd0e32
FormBook
569b8cf6219a91161d48291f13285babe58b3be185623f3ec44c65c8369c2278
FormBook
7f6459ace4d6259e61c8170563af8a30f25568457902f4f717c8ad17574efab6
FormBook
9c0d3c463792d704909de3a04cd7a6d31f8094301e8e24950af31cdc5e9f2838
FormBook
b7a360cf2a3651e663b82407d8aa940f66b4c7f9569fc445771d8bc17f727bef
FormBook
d3664113994262962936ebe74d0355986970def0cd0bcdcf088fe102047df9ba
FormBook
dcdd457e51bde64c24cf118ac54c8489efbc4bc55b5f1afc4facdfe673d3543e
FormBook
+ 3'418 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook persistence keylogger family:nanocore
Link:
https://tria.ge/reports/201002-mj7jktjjca/
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
Program crash
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Formbook Payload
ServiceHost packer
Formbook
NanoCore
Malware Config
C2 Extraction:
http://www.mansiobok2.info/aofk/
194.5.97.179:4488
Unpacked files
SH256 hash:
988d2c306698b469a52c807a28fbd030868b108458ed2b72e6f776f2ed933703
MD5 hash:
2f159c22c90f5cbddfdba3455f2aa94e
SHA1 hash:
57c7fb9804ba3fa064fac0a78cb5cfeb7b9d10c2
Link:
https://www.unpac.me/results/70a36027-d9dd-41af-a84e-64db72c0f062/
SH256 hash:
94955e69a81b0ff2a1ceea1a71781cce889385a91ddba67bfe1a0334ddbdf67d
MD5 hash:
706ff15fbcb8ce493b86ee63d6e5ef3f
SHA1 hash:
112ba3551bcc1493d2140cad94d5a5f79a251947
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/70a36027-d9dd-41af-a84e-64db72c0f062/
SH256 hash:
efbebcd7c6859c0ee23dbf1b5fc7a0568c6fe5ce03aaacdf8fabcec09a4da507
MD5 hash:
60ce0e94a0c5dee882f4a913b9f5939f
SHA1 hash:
22907012489ec989dac9389e6f38e6d26802030c
Link:
https://www.unpac.me/results/70a36027-d9dd-41af-a84e-64db72c0f062/
SH256 hash:
7c46ba0fa194e088e51b21d3cb550ee86337fb922fece496efb8dc21d65f4017
MD5 hash:
30e84c8fe0a6156e53cbc43becc385ae
SHA1 hash:
5c9e6e716d6f090faf120470d55fec33a0befca4
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/70a36027-d9dd-41af-a84e-64db72c0f062/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Nanocore
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/988d2c306698b469a52c807a28fbd030868b108458ed2b72e6f776f2ed933703

File information

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

Web download

FormBook

Executable exe 988d2c306698b469a52c807a28fbd030868b108458ed2b72e6f776f2ed933703

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/67736/
  
URLhaus
https://urlhaus.abuse.ch/url/639372/
  
Delivery method
Distributed via web download

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