MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2728dc98fdebc00823b877eba49ace782c17db8a07074634aafca9dc00277776. 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 3 File information Comments
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SHA256 hash: 2728dc98fdebc00823b877eba49ace782c17db8a07074634aafca9dc00277776
SHA3-384 hash: 42c96111099cc27f7b862afa27f14182aa280e436bdb919c04f775c609d373baa5ff0e68507f309e79a8d8daa08cbf09
SHA1 hash: acd9171ec5641efc54a16c5c18184dd6e25138c8
MD5 hash: 001127ea6a36d3b93e8c54ff1b8f22b8
humanhash: muppet-mobile-blue-angel
File name:Inquiry-URGENT.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:443'904 bytes
First seen:2021-09-27 15:45:25 UTC
Last seen:2021-10-04 10:59:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:OIF/OGaxwRNRWMDABT4ZxzOiGLbrh9yU9:OIFy2NsMDA54Z8dbrhN9
Threatray 9'705 similar samples on MalwareBazaar
TLSH T12394E02EA17CE61FCDDFC2BBB064261C2A4AF5C2B384C544DB9350F5A55DB7A06848CB
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Inquiry-URGENT.exe
Verdict:
Malicious activity
Analysis date:
2021-09-27 15:47:08 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/23264693-ef64-4173-a34f-078dbda15222

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/192183/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1048.32274.31200.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/40413b7d-ed34-4974-9876-03ef209860af
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/859137
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
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
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
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
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 dnsIp2 2 Behavior Graph ID: 491567 Sample: Inquiry-URGENT.exe Startdate: 27/09/2021 Architecture: WINDOWS Score: 100 31 www.studyengland.com 2->31 33 www.novasaude-g1.online 2->33 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 10 other signatures 2->47 11 Inquiry-URGENT.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\...\Inquiry-URGENT.exe.log, ASCII 11->29 dropped 61 Tries to detect virtualization through RDTSC time measurements 11->61 63 Injects a PE file into a foreign processes 11->63 15 Inquiry-URGENT.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.lianshangtron.com 18->35 37 www.trasportesemmanuel.com 162.241.61.210, 49845, 80 UNIFIEDLAYER-AS-1US United States 18->37 39 15 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 51 Performs DNS queries to domains with low reputation 18->51 22 rundll32.exe 18->22         started        signatures11 process12 signatures13 53 Self deletion via cmd delete 22->53 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 59 Tries to detect virtualization through RDTSC time measurements 22->59 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/2728dc98fdebc00823b877eba49ace782c17db8a07074634aafca9dc00277776/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-09-26 02:41:17 UTC
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=e4unzgh55paaqi5yo7v2jgwopawbpw4ka4dumnfk7su5yabho53a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1076b9efbc0e135c85f1228253f9a1d2f35f4fd49c70d290de72808f72bd56eb
Formbook
166559731ad15341f955bf8a16708f93542bef868c33f02f70e9b27f57b991a3
Formbook
2fc82f206abb0d6d6b4d7a916be93b408ab78f848531917b3968b066a5a31023
Formbook
326a1e669385d8e241375e9eca9f915440f1d0d3f803e6d1648f30102cbedaa6
Formbook
45f5e2a682896ac3380522e26a0398b8112bafc42948666c9fecafa3dcab69e3
Formbook
4eb131114c2b67395cff2f126c699a569e6ba5e3a53876f79588dfa0924b3d7e
Formbook
50c6754cbbd313acc6a250182439a1191d8f8318f0794feea75bd647b6205f7a
Formbook
5c8f31380d956958134331ea55e63835fd16ca1f02f4c81672b69db70bc97ab8
Formbook
a7acd97fcff334160640901d977010aa55397f5a6da375ab38bcb1622b800f7d
Formbook
c4c9d27ea805c32e7f0e66dc0d9534d8fbd87f4c1327727b2e1e9ae937f02c45
Formbook
+ 9'695 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:b5ce loader rat
Link:
https://tria.ge/reports/210927-s7nhaahdb8/
Behaviour
Enumerates system info in registry
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
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.rheilea.com/b5ce/
Unpacked files
SH256 hash:
142d782507a3a68a4d1dea29e52f0699923a9c2b09803813a91087fd28557389
MD5 hash:
c10bac73d5f73b68877844c80e799670
SHA1 hash:
3c07ba2b4c7896264925e18f2c46eae383238b9c
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/43dd67e5-c6e2-4b60-85f4-cdcafce49559/
Parent samples :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 hash:
938ab122ef4fd3e6ed76aee0250290dcf3b3bd1470acbb0edfe4b000467e545c
MD5 hash:
9f5bbac85866e3a72ceac1c76bf3769a
SHA1 hash:
3a3c69dc8ab38e7a9e2347468c47274f044c8c45
Link:
https://www.unpac.me/results/43dd67e5-c6e2-4b60-85f4-cdcafce49559/
SH256 hash:
0d1db2b5f92685b772a82667e4a2bc8cd88f320028d478527bcb6df300a80b13
MD5 hash:
db6350816e2f24897eda17edf3e88f7a
SHA1 hash:
339c02e45487de7a686c68d36c54b00e2d460c22
Link:
https://www.unpac.me/results/43dd67e5-c6e2-4b60-85f4-cdcafce49559/
SH256 hash:
efd2f7657839b252c2fb8489c1ccf610b8e57b471efe049de86a74bc1506775d
MD5 hash:
c3f3e4a9e9ab54bf847a9fc02e7a2160
SHA1 hash:
0853bec33e36ede763927cda0f03129ca763bc07
Link:
https://www.unpac.me/results/43dd67e5-c6e2-4b60-85f4-cdcafce49559/
SH256 hash:
2728dc98fdebc00823b877eba49ace782c17db8a07074634aafca9dc00277776
MD5 hash:
001127ea6a36d3b93e8c54ff1b8f22b8
SHA1 hash:
acd9171ec5641efc54a16c5c18184dd6e25138c8
Link:
https://www.unpac.me/results/43dd67e5-c6e2-4b60-85f4-cdcafce49559/
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/2728dc98fdebc00823b877eba49ace782c17db8a07074634aafca9dc00277776

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 2728dc98fdebc00823b877eba49ace782c17db8a07074634aafca9dc00277776

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/192183/

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