MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0c5e61b415a6ebd50f07b9a3eab5bb7fd6b501715e9f3968c4ea2dbc7323f189. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments
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SHA256 hash: 0c5e61b415a6ebd50f07b9a3eab5bb7fd6b501715e9f3968c4ea2dbc7323f189
SHA3-384 hash: 36e13ea6812adab24838e7cbb3381f9ce1f97c7f727a5dfc194dbd9eb9968d1aee3255afa33a688f4c6cd3ce65df5e6c
SHA1 hash: 2b9aca7ac1d912f8cef14cc7bb120f2a7f2d0e6b
MD5 hash: 08c8c740498b3da7a6a7d1712a1b2b6c
humanhash: artist-michigan-march-nebraska
File name:SKM_C3350191.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:733'184 bytes
First seen:2021-08-30 10:20:58 UTC
Last seen:2021-09-04 15:52:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 6144:D+L4gXFiC+KCtx0LQ/LN0vZsz7THjGyV6HOo3DdHlAaKs8ALSrjU50nhEpGZq8aq:D+L5SKS0YUuzHNonRHh7QEhGVaQ1
Threatray 8'615 similar samples on MalwareBazaar
TLSH T1BEF42D7F19BDA2279175C6F58BE78827F0008B6F3110696476D347264322A7AB4F336E
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
3
# of downloads :
201
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SKM_C3350191.exe
Verdict:
Malicious activity
Analysis date:
2021-08-30 10:23:48 UTC
Tags:
trojan formbook stealer opendir
Link:
https://app.any.run/tasks/9aa605ce-4137-455c-bdc5-362d74bf92ae

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/183707/
Detection(s):
SecuriteInfo.com.W32.MSIL_Troj.BKO.genEldorado.8747.16476.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Deleting a recently created file
Unauthorized injection to a recently created process
Launching a process
Creating a process with a hidden window
Creating a file
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/49e69147-0660-47b4-857e-d7ee00a03657
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/841468
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
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 dropped file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 473897 Sample: SKM_C3350191.exe Startdate: 30/08/2021 Architecture: WINDOWS Score: 100 39 www.darunfanzhi.com 2->39 47 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 9 other signatures 2->53 11 SKM_C3350191.exe 7 2->11         started        signatures3 process4 file5 35 C:\Users\user\AppData\Roaming\vUIOpHElA.exe, PE32 11->35 dropped 37 C:\Users\user\AppData\Local\...\tmp6B72.tmp, XML 11->37 dropped 57 Uses schtasks.exe or at.exe to add and modify task schedules 11->57 59 Tries to detect virtualization through RDTSC time measurements 11->59 61 Injects a PE file into a foreign processes 11->61 15 SKM_C3350191.exe 11->15         started        18 schtasks.exe 1 11->18         started        20 SKM_C3350191.exe 11->20         started        signatures6 process7 signatures8 71 Modifies the context of a thread in another process (thread injection) 15->71 73 Maps a DLL or memory area into another process 15->73 75 Sample uses process hollowing technique 15->75 77 Queues an APC in another process (thread injection) 15->77 22 explorer.exe 15->22 injected 26 conhost.exe 18->26         started        process9 dnsIp10 41 www.stop-masquerade.com 217.160.0.230, 49723, 80 ONEANDONE-ASBrauerstrasse48DE Germany 22->41 43 gotothishygienist.com 91.184.0.95, 49721, 80 HOSTNETNL Netherlands 22->43 45 6 other IPs or domains 22->45 55 System process connects to network (likely due to code injection or exploit) 22->55 28 svchost.exe 22->28         started        signatures11 process12 signatures13 63 Self deletion via cmd delete 28->63 65 Modifies the context of a thread in another process (thread injection) 28->65 67 Maps a DLL or memory area into another process 28->67 69 Tries to detect virtualization through RDTSC time measurements 28->69 31 cmd.exe 1 28->31         started        process14 process15 33 conhost.exe 31->33         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/0c5e61b415a6ebd50f07b9a3eab5bb7fd6b501715e9f3968c4ea2dbc7323f189/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-30 10:21:08 UTC
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=brpgdnavu3v5kdyhxgr6vnn3p7llkalrl2pts2ge5iw3y4zd6geq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2ab54e46be8e8a1b7e66be9bed5492e2cb5c4112e548442e209954affc2dc374
Formbook
43368f8d0f777c8f0a9fb5dc2ec89f131275873935098ff8a12be41cd2161ecf
Formbook
7da12f9f66e5a7ee4f9a6a025c6c3a1464ea85d0d805d2f7e85537c24a4ad6c0
Formbook
8b4049ea3937e355ad9a551795afcb621fb56991ffc6f1db746861acfd7d6a46
Formbook
8c84e97b71aa8d34be8742cd4b6c0b86abdfb92379b099465eb751b0882efb23
Formbook
b09fdc39338aacafb7eb0163757d2b9863f78e5467af017ff4ad2f09e0e266a2
Formbook
c71e73a5006f03bf63ad6099f034a3d19a130a6893979c43318eca2cb6bfd224
Formbook
+ 8'605 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:b6cu loader rat suricata
Link:
https://tria.ge/reports/210830-adg4nqtjgn/
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 UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.xn--marketingrevolucin-61b.com/b6cu/
Unpacked files
SH256 hash:
68a49f8d55aecf2551c16097b302614bcd617a3d1b565f37cd45a92993d0f065
MD5 hash:
1bfe6840b1414ec3315aa2735431fb71
SHA1 hash:
f6e382e2d534b5edc965d5053b6a4c63488e4c43
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/3319fe80-ba3e-457e-b9a9-d24a895ca14b/
Parent samples :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 hash:
c0ee1071e444f415f8b62856a0896f3b22e563f1bb4f03d14142583efe49a565
MD5 hash:
29db2e114b88ae1f6a00c9aa71690043
SHA1 hash:
ec82db71443556a5b320357b0b8b09e70ec1db9c
Link:
https://www.unpac.me/results/3319fe80-ba3e-457e-b9a9-d24a895ca14b/
SH256 hash:
7365e71ddfa73f0a5f21710fb8c06691646103f5dda6e3ece429086b13d25354
MD5 hash:
520a26c834a0ffa2e569f1de8b73ceb9
SHA1 hash:
b70769710e3d72b6aef2755d0f2c0d97ddd78409
Link:
https://www.unpac.me/results/3319fe80-ba3e-457e-b9a9-d24a895ca14b/
SH256 hash:
0c5e61b415a6ebd50f07b9a3eab5bb7fd6b501715e9f3968c4ea2dbc7323f189
MD5 hash:
08c8c740498b3da7a6a7d1712a1b2b6c
SHA1 hash:
2b9aca7ac1d912f8cef14cc7bb120f2a7f2d0e6b
Link:
https://www.unpac.me/results/3319fe80-ba3e-457e-b9a9-d24a895ca14b/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/0c5e61b415a6/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/0c5e61b415a6ebd50f07b9a3eab5bb7fd6b501715e9f3968c4ea2dbc7323f189

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 0c5e61b415a6ebd50f07b9a3eab5bb7fd6b501715e9f3968c4ea2dbc7323f189

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/183707/

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