MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9748d96e1143a06277d9cc3e9398d366fe3fa21c4316b8134462c42a0020fe87. 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 3 File information Comments
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SHA256 hash: 9748d96e1143a06277d9cc3e9398d366fe3fa21c4316b8134462c42a0020fe87
SHA3-384 hash: e094d9360053a11bd05efd446ef1274dc33f7ae632c75b86cf3cea41d9564718dbb09a68eab8226ca31f11a4b0591597
SHA1 hash: 23f03a3533053b06acc915bcb33e9a8ebfdfa010
MD5 hash: a23d32321c572b877246453f426494d2
humanhash: wisconsin-twelve-maine-monkey
File name:REVISED OFFER.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'545'216 bytes
First seen:2021-09-28 10:02:38 UTC
Last seen:2021-09-30 15:51:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:iAdAd4XmH4CBjraRfOdzkC18OQ0PCVSWEBp:iAqd4XmH4CBjraRgOQ3
Threatray 9'670 similar samples on MalwareBazaar
TLSH T1FA6531395D2686F7C3EFC62CD04C0A8EDAF2A4877A61CF19DC81DAC6029770BD28955D
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
158
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
REVISED OFFER.exe
Verdict:
Malicious activity
Analysis date:
2021-09-28 10:05:29 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/09d52ed5-2938-4af8-88b2-88f99167f663

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1037-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
DNS request
Connection attempt
Sending an HTTP GET request
Possible injection to a system process
Unauthorized injection to a system process
Deleting of the original file
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/bd7930c4-b32a-4f21-906c-f8a8ff886b33
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/859721
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 492153 Sample: REVISED OFFER.exe Startdate: 28/09/2021 Architecture: WINDOWS Score: 100 31 www.mauzabe.com 2->31 33 mauzabe.com 2->33 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus detection for URL or domain 2->45 47 7 other signatures 2->47 11 REVISED OFFER.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\...\REVISED OFFER.exe.log, ASCII 11->29 dropped 59 Injects a PE file into a foreign processes 11->59 15 REVISED OFFER.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.stellarex.energy 66.96.162.146, 49823, 80 BIZLAND-SDUS United States 18->35 37 www.s-galaxy.website 87.236.16.214, 49824, 80 BEGET-ASRU Russian Federation 18->37 39 8 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 22 control.exe 18->22         started        signatures11 process12 signatures13 51 Self deletion via cmd delete 22->51 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/9748d96e1143a06277d9cc3e9398d366fe3fa21c4316b8134462c42a0020fe87/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-28 06:35:36 UTC
AV detection:
12 of 45 (26.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=s5ens3qrioqge56zzq7jhggtm37d7iq4imllqe2emlccuaba72dq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
03b8b680955c5827b5f80ace4afb923c2a5714cbe1b9ca579ab6f197b8826bc6
Formbook
3ac2da7ec8b0c46550c9b85707c4743ea4cacbb5bb6ee0fd159792f3978e3ad3
Formbook
695b006f3b83048d47ea1fcae9d7cbacac8f82b4f3d2908ca20f06788e8b3b92
Formbook
699ac8f16c67cda47a80657cce69cbb8b42d711a9e4609ad6a8ff2ed84119b01
Formbook
8d536146e57d878eea148bc98170d2f7cad77ea57f0fbefedf3f3c0dcce40ac5
Formbook
bf335484cc9fdfc68bda67acbe6eab1f65f0f7dd7043b3aff47b47201ca531c5
Formbook
c7e4871bd8e22a0dfd8116206cff6631ca4a91857df75017b890768da0730041
Formbook
ed4ba3559a925d94bd2917dd5d4247d84e904b1e8423c21e40a0b9efc7b295d6
Formbook
f1540e89eeb7046cd265d37ef63a6d282a1ff8a89875193ae775582e74205594
Formbook
fc9f8f3e66f8ea09953b7b5eba261ff36eb9a78a5f92787eb879420ee3bad581
Formbook
+ 9'660 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:c2ue loader rat suricata
Link:
https://tria.ge/reports/210928-l3cfwsbfcr/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.heidevelop.xyz/c2ue/
Unpacked files
SH256 hash:
4fe5eccf2d183b9c91b135a9659155103c51b75cc28268407d735935383381e4
MD5 hash:
3b5dca5c0340a8ac46af819bae7eb71f
SHA1 hash:
ff288bc89fcef4be981bc620d5248db6d03d9090
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/a9cb7a47-8f67-4227-864e-82e7d9a71d74/
Parent samples :
f1540e89eeb7046cd265d37ef63a6d282a1ff8a89875193ae775582e74205594
bf335484cc9fdfc68bda67acbe6eab1f65f0f7dd7043b3aff47b47201ca531c5
fc9f8f3e66f8ea09953b7b5eba261ff36eb9a78a5f92787eb879420ee3bad581
03b8b680955c5827b5f80ace4afb923c2a5714cbe1b9ca579ab6f197b8826bc6
8d536146e57d878eea148bc98170d2f7cad77ea57f0fbefedf3f3c0dcce40ac5
ed4ba3559a925d94bd2917dd5d4247d84e904b1e8423c21e40a0b9efc7b295d6
c7e4871bd8e22a0dfd8116206cff6631ca4a91857df75017b890768da0730041
a109f0b9407728fef1b41d766e8228085ee04661156d84ef543777bf311f450b
9748d96e1143a06277d9cc3e9398d366fe3fa21c4316b8134462c42a0020fe87
bdf00456287e3b458420249732255abf583ab0d6b5eb263f45d6ff329abdde93
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
Link:
https://www.unpac.me/results/a9cb7a47-8f67-4227-864e-82e7d9a71d74/
SH256 hash:
e6331faaee366b59ae7a417c81ad38a61a918d5a33c46161b9889c6e4c8744bf
MD5 hash:
25d682f40fcfef507d54c521e0da07f5
SHA1 hash:
34eb9dac2b1e2daddd02f93e5c3089826fb2d245
Link:
https://www.unpac.me/results/a9cb7a47-8f67-4227-864e-82e7d9a71d74/
SH256 hash:
9748d96e1143a06277d9cc3e9398d366fe3fa21c4316b8134462c42a0020fe87
MD5 hash:
a23d32321c572b877246453f426494d2
SHA1 hash:
23f03a3533053b06acc915bcb33e9a8ebfdfa010
Link:
https://www.unpac.me/results/a9cb7a47-8f67-4227-864e-82e7d9a71d74/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.71
Link:
https://yomi.yoroi.company/submissions/9748d96e1143a06277d9cc3e9398d366fe3fa21c4316b8134462c42a0020fe87

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: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 9748d96e1143a06277d9cc3e9398d366fe3fa21c4316b8134462c42a0020fe87

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment

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