MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 26fff5fc343d24c23cbce78800c7e687aa263fa78141490d970f7bb9bb7a9965. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 26fff5fc343d24c23cbce78800c7e687aa263fa78141490d970f7bb9bb7a9965
SHA3-384 hash: b5b5df2d95ca0ff0a314e3f472572ede6b752d1e90ca1e614402d6c80af9b0ecf0c2589ade56d48c24c16c04d40e8acb
SHA1 hash: 773a8c0949570118edbb2741c3e2a562fd08bc72
MD5 hash: 94b24602d168b06790f555dbd6a4a139
humanhash: enemy-floor-mockingbird-island
File name:PO #20004235.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:494'080 bytes
First seen:2021-11-02 14:54:31 UTC
Last seen:2021-11-03 07:00:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:JZe1OTl9AO7W7aLhHttXZTSEvS6SoRy/UAPkx:2UTgOvhNtJTpaR0y/76
Threatray 11'134 similar samples on MalwareBazaar
TLSH T154B4E0C2B6E0C511C12D4F72A0312C2182B3BEAE3D09F6DB6D8979A736777C64521B97
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
140
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO #20004235.exe
Verdict:
Malicious activity
Analysis date:
2021-11-02 15:01:29 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/a76d00da-0deb-41a0-a423-284737e01e57

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/201496/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.47300229.15364.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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6181514bbf51178dbe491518/reports/ec8253ae-ab37-4959-8c94-66a9b054a812/overview
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/04ec6c70-56fe-4a4e-becc-bd76e3572be9
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/881409
Signature
.NET source code contains potential unpacker
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
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: 513853 Sample: PO #20004235.exe Startdate: 02/11/2021 Architecture: WINDOWS Score: 100 31 www.gamex724.com 2->31 33 www.bamasaltwaterfishing.com 2->33 35 bamasaltwaterfishing.com 2->35 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 7 other signatures 2->49 11 PO #20004235.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\...\PO #20004235.exe.log, ASCII 11->29 dropped 63 Injects a PE file into a foreign processes 11->63 15 PO #20004235.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 37 www.nakaifans.com 108.186.114.36, 49801, 80 PEGTECHINCUS United States 18->37 39 uppunjabiacademy.com 103.120.179.87, 49831, 80 NETMAGIC-APNetmagicDatacenterMumbaiIN India 18->39 41 9 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 53 Performs DNS queries to domains with low reputation 18->53 22 colorcpl.exe 18->22         started        signatures11 process12 signatures13 55 Self deletion via cmd delete 22->55 57 Modifies the context of a thread in another process (thread injection) 22->57 59 Maps a DLL or memory area into another process 22->59 61 Tries to detect virtualization through RDTSC time measurements 22->61 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/26fff5fc343d24c23cbce78800c7e687aa263fa78141490d970f7bb9bb7a9965/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-02 13:41:03 UTC
AV detection:
16 of 28 (57.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=e377l7buhusmepf446eabr7gq6vcmp5hqfausdmxb553to32tfsq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
18e91cbaa2d04fa969e97e947ccd011d494f68eb6375b067f0342a7765fb3119
Formbook
26506e7d3f4821066fc1989a5c79afb4d1a316aa428f9e4a920644d93a80b495
Formbook
35204f1850b1439ef9a8fd958d6c3045edae69378aa3593021795d0600fc5a01
Formbook
3f5c235293cfdde26a725b19b3cbaefc44dae026b7dff9124002f42e564df18b
Formbook
516601b7a328bcee918e8c52e46f71b39437045489bdaaf90136c9f899197bc8
Formbook
88c841869430e07bb9b80e52d61d4f013c6bd8753b06807b411a428f09669c33
Formbook
94aa24f8b40073f3474809c5e7b5c0bb808a88a65810d92ee231baeb8efc0cb3
Formbook
da0e2504009a426b799d9135979188e2c4533f69c2e981650afc51d5e8e320c2
Formbook
+ 11'124 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:efa8 loader rat
Link:
https://tria.ge/reports/211102-saffeachh4/
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 WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.viewba.store/efa8/
Unpacked files
SH256 hash:
a30108e4d0beee278d169c23cf40880184a7187ded6a05d7ca1e2dadeeebefad
MD5 hash:
ff93bb1edfda4ec718449ce316669366
SHA1 hash:
79bde73fe8ec7a579ea77eef2f1698e6c19ba34b
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/4b700c64-283f-4ee2-b053-3e916eab618b/
Parent samples :
26fff5fc343d24c23cbce78800c7e687aa263fa78141490d970f7bb9bb7a9965
73a254fe8cce08216fdd98cfa4c0072ee082d3aae0942b74e6fc0eec2df9df83
7b9161582fc319cf5a312d518fcf6350dd75cd17f640def37eec5302a4d590bf
SH256 hash:
c3bd42c8c394a84c1eaebb23bcdae1a68a4bd7d82e5b5f17ff141a7f0958a69b
MD5 hash:
da1d4835d60bf82d7f14abdcc3008eb3
SHA1 hash:
dfe7668cf3aafa32778facb88f3974e6a51bd873
Link:
https://www.unpac.me/results/4b700c64-283f-4ee2-b053-3e916eab618b/
SH256 hash:
7ec7c47de5927351c7035f8657a2dd91c42fd6ed6e4da309e34b87ef0b0ba785
MD5 hash:
171a2669225911b41301096cd9dcf19f
SHA1 hash:
dc25f1f69faec5174e489a0d1a18cf14cf7fd1b5
Link:
https://www.unpac.me/results/4b700c64-283f-4ee2-b053-3e916eab618b/
SH256 hash:
26fff5fc343d24c23cbce78800c7e687aa263fa78141490d970f7bb9bb7a9965
MD5 hash:
94b24602d168b06790f555dbd6a4a139
SHA1 hash:
773a8c0949570118edbb2741c3e2a562fd08bc72
Link:
https://www.unpac.me/results/4b700c64-283f-4ee2-b053-3e916eab618b/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/26fff5fc343d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/26fff5fc343d24c23cbce78800c7e687aa263fa78141490d970f7bb9bb7a9965

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 26fff5fc343d24c23cbce78800c7e687aa263fa78141490d970f7bb9bb7a9965

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/201496/

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