MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 10a050d7cb20feeb5842b78ddc183f34ee0aa3e0769b6929f963201dd8b7d4ca. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
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SHA256 hash: 10a050d7cb20feeb5842b78ddc183f34ee0aa3e0769b6929f963201dd8b7d4ca
SHA3-384 hash: 601a125bf32bd114e726ef0220bce544fd0369353086c73392a7eba4464775e920f923967409ded6eaab18c9c0c7f423
SHA1 hash: 817604d9862ec3821e88f9ea562fb7bb379e072f
MD5 hash: cfc8796e013b871d88888537ae7727e4
humanhash: sixteen-violet-artist-summer
File name:KOC-RFQ.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:679'424 bytes
First seen:2021-09-03 01:24:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:n9fC7nYNpqx9kgEJQshVIFJeRpSiyRZnY9pLDmc6n9KctpGi629c0FLl69pTMbk0:967nYri9kQFGSXRZnCJ
Threatray 8'872 similar samples on MalwareBazaar
TLSH T1EDE45A9C3660B1DFC95BC9768D581C64FA6078BA530FD203A05326EDAA0DA9BCF151F3
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
253
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
KOC-RFQ.exe
Verdict:
Malicious activity
Analysis date:
2021-09-03 01:25:28 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/3a865d5b-60b3-4734-b25b-e9ffe73b1d6f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/184979/
Detection(s):
SecuriteInfo.com.Virus.Win32.Save.a.15853.18933.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c8561acf-ed3f-4845-b7a0-79e545d15e90
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/844460
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
Self deletion via cmd delete
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 476891 Sample: KOC-RFQ.exe Startdate: 03/09/2021 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 8 other signatures 2->44 10 KOC-RFQ.exe 3 2->10         started        process3 file4 30 C:\Users\user\AppData\...\KOC-RFQ.exe.log, ASCII 10->30 dropped 58 Detected unpacking (changes PE section rights) 10->58 60 Tries to detect virtualization through RDTSC time measurements 10->60 62 Injects a PE file into a foreign processes 10->62 14 KOC-RFQ.exe 10->14         started        17 KOC-RFQ.exe 10->17         started        signatures5 process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 Queues an APC in another process (thread injection) 14->70 19 explorer.exe 14->19 injected process8 dnsIp9 32 www.powerreport.xyz 99.83.154.118, 49718, 80 AMAZON-02US United States 19->32 34 www.vectorstratos.com 19->34 36 3 other IPs or domains 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 48 Performs DNS queries to domains with low reputation 19->48 23 help.exe 19->23         started        signatures10 process11 signatures12 50 Self deletion via cmd delete 23->50 52 Modifies the context of a thread in another process (thread injection) 23->52 54 Maps a DLL or memory area into another process 23->54 56 Tries to detect virtualization through RDTSC time measurements 23->56 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/10a050d7cb20feeb5842b78ddc183f34ee0aa3e0769b6929f963201dd8b7d4ca/
Threat name:
ByteCode-MSIL.Packed.Confuser
Create hunting rule
Status:
Malicious
First seen:
2021-09-02 20:59:24 UTC
AV detection:
11 of 28 (39.29%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ccqfbv6led7owwccw6g5ygb7gtxavi7ao2nwskpzmmqb3wfx2tfa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
235ba381590281e939399f0b33cb4a95fcf2d0d60f8fb13a179c4aea788812e4
Formbook
6a48a1bb2cac5fd1bcc700d2aa244bb2e68cc5f675c0adea8a99d25feb0b2be0
Formbook
8830d590a0037fa1aadfd805782ab6a64905d5734b8205cd7aac30e9f116ee49
Formbook
9891e59fd137efef706c3d6ba08139d1a6e56ac4c1fe29aad0438848738393af
Formbook
d26d2d077e429b7f9a4e7a4a0026ea5892403fe9a475fa12566e1e58610d628b
Formbook
e0e30c8c2180ba5b019bb78098a25811a1989a1bc6809e4c17130d887c47a24e
Formbook
+ 8'862 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ucze rat spyware stealer trojan
Link:
https://tria.ge/reports/210903-bszhkabhd6/
Behaviour
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
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.suavit.com/ucze/
Unpacked files
SH256 hash:
5c4839feb76e72b7ede9bb3f57e34a948b36fbbbdead59ca3586771abb2b5e7a
MD5 hash:
8d9d6f2173a821a821f9849ccf8d4f21
SHA1 hash:
777ab5bb88f22368ab0c386b0292fcef4dddff44
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/64797ae1-69bd-418e-9199-db3d8981addf/
Parent samples :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 hash:
c0ee1071e444f415f8b62856a0896f3b22e563f1bb4f03d14142583efe49a565
MD5 hash:
29db2e114b88ae1f6a00c9aa71690043
SHA1 hash:
ec82db71443556a5b320357b0b8b09e70ec1db9c
Link:
https://www.unpac.me/results/64797ae1-69bd-418e-9199-db3d8981addf/
SH256 hash:
9e5ac8578e0ccb5c829512cb1069b4e272275ffd379db2bb547734e4f1bad13d
MD5 hash:
a85cc99ae6585c3a29764bbd12e0f6ad
SHA1 hash:
4f43b4dddb74b078672373a184147c224c596558
Link:
https://www.unpac.me/results/64797ae1-69bd-418e-9199-db3d8981addf/
SH256 hash:
10a050d7cb20feeb5842b78ddc183f34ee0aa3e0769b6929f963201dd8b7d4ca
MD5 hash:
cfc8796e013b871d88888537ae7727e4
SHA1 hash:
817604d9862ec3821e88f9ea562fb7bb379e072f
Link:
https://www.unpac.me/results/64797ae1-69bd-418e-9199-db3d8981addf/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/10a050d7cb20feeb5842b78ddc183f34ee0aa3e0769b6929f963201dd8b7d4ca

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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 10a050d7cb20feeb5842b78ddc183f34ee0aa3e0769b6929f963201dd8b7d4ca

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/184979/

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