MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 837d5ed2867ffbf6b718264ecc27e620ffd9d14b1a4d2255f56b04181713830f. 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 3 File information Comments
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SHA256 hash: 837d5ed2867ffbf6b718264ecc27e620ffd9d14b1a4d2255f56b04181713830f
SHA3-384 hash: 26e5717b1e2c441917a778b046743275ba369a10f9998125e3a7f8fc29305a6eb38931508ad809594b027750e1882db1
SHA1 hash: ee8ba4b276bfb69be97518c994d9536eebc76e53
MD5 hash: f336298269351704e8a3f7a5f071c82d
humanhash: massachusetts-vegan-nineteen-artist
File name:Cargill PO 7885 pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'266'688 bytes
First seen:2021-08-26 14:01:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'470 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:4lUWIHraPRdOG2nGhYrntpfV7WV/Nm/y12NhmK:4RILaPnpg0qnbPyYl
Threatray 8'407 similar samples on MalwareBazaar
TLSH T11045053C29BD222BD1B9C7B9CBE59823F05499AF3111AD6458D357AA4B13E4235C323F
dhash icon 1834b436f2f0f0c2 (10 x AgentTesla, 7 x Formbook, 5 x SnakeKeylogger)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
371
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Cargill PO 7885 pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-08-26 14:04:51 UTC
Tags:
trojan formbook stealer opendir
Link:
https://app.any.run/tasks/825664f7-b5f0-415f-b829-25a2ac7ebe40

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/182678/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1011.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
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/de91e390-a8d1-4251-b073-6cceedbbfcb3
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/839825
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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: 472251 Sample: Cargill PO 7885 pdf.exe Startdate: 26/08/2021 Architecture: WINDOWS Score: 100 31 www.delights.info 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 8 other signatures 2->45 11 Cargill PO 7885 pdf.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\...\Cargill PO 7885 pdf.exe.log, ASCII 11->29 dropped 55 Injects a PE file into a foreign processes 11->55 15 Cargill PO 7885 pdf.exe 11->15         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 Queues an APC in another process (thread injection) 15->63 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.chongzhi365.com 156.241.53.50, 49743, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 18->33 35 www.mblinks.net 66.96.162.131, 49740, 80 BIZLAND-SDUS United States 18->35 37 10 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 cscript.exe 18->22         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/837d5ed2867ffbf6b718264ecc27e620ffd9d14b1a4d2255f56b04181713830f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-26 12:17:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
33
AV detection:
16 of 28 (57.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qn6v5uugp757nnyyezhmyj7ged75tukldjgsevpvnmcbqfytqmhq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
03735650255866b1c2592bcb4567cbcb2b9d23eea5430d2e7d7c6315abadb5ad
Formbook
0ccc6514caee09ed66f24a7883aa22194e523834485f752684d0ddd727e39487
Formbook
355dd96121c1930f9c9c0f94b6474d5cbeb3bcfd6a7c51a043674cc79a26c891
Formbook
5349c12829e9211379203cade48f7d00777a66b4cb898d68764da90890aae048
Formbook
561562923f5bb53f6113b9a15c60cf2755437556e9e48cdc3fc3ae7ebe0171a7
Formbook
6520c8e7f0f0ad32a8599cffd8d908860f6e0ade6fb41104b31657f8a27a908b
Formbook
6c60876d91087cbd176ff5419577f2b3315b2d3a9d9c6d11a06b95ea10d5311f
Formbook
9b8e02c9169932cb809300c4dff5afc240aba4d5a87264f0f7123314345c6248
Formbook
a493b139543bd582271914a75e9105f38a73217871bf859651fa9e67cc94954b
Formbook
a9c3d37d324e9b6a0ebf9f9369c68cc288117edc4657d086b0fbc0cbafee9e64
Formbook
+ 8'397 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:k8b5 loader rat
Link:
https://tria.ge/reports/210826-ds5fpbpv6e/
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
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.chongzhi365.com/k8b5/
Unpacked files
SH256 hash:
fb2708faaa182dcb378ed514dd3aa8eade73f6ba95b2c1ce3bb050790ea94345
MD5 hash:
60681cd2406501f4e4342559485cd1ca
SHA1 hash:
4f5b06688f779dbe5a35d93baa7ec38792a16fc2
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/e5436282-6233-4e0f-bff6-de800a15e1c7/
Parent samples :
837d5ed2867ffbf6b718264ecc27e620ffd9d14b1a4d2255f56b04181713830f
2cb7c7c1cb918607912be236d42152a8f9d5347cabf4e815940f2b85c5d9f026
3085d62628657edccc65a18edda86f253fb86712a4e50b1cf67828bfa2d33e80
f621e1b5cd41932d5afac294e228f4f62b056ef322103c8ec06b9123a4eac2d0
e182055e80f1d8a84eab0f3738276043d0c95bcd50492dcc3c711bde472cd1af
cb410693d5e96ef42263250f76d0d16925e54620e350a5faf6053b49a14a07e1
f1619d4c36e975b2cc880b6a72db99282df847ebb72dc6446950dbcbf4d0f487
SH256 hash:
c0ee1071e444f415f8b62856a0896f3b22e563f1bb4f03d14142583efe49a565
MD5 hash:
29db2e114b88ae1f6a00c9aa71690043
SHA1 hash:
ec82db71443556a5b320357b0b8b09e70ec1db9c
Link:
https://www.unpac.me/results/e5436282-6233-4e0f-bff6-de800a15e1c7/
SH256 hash:
c8b5f18f102fec2c5cc0cdc58bb9fb87a69132fe6828329348e6479310e0e24f
MD5 hash:
0b48abb0c09d8be001a4bb3aac342ba4
SHA1 hash:
504d8f320d431c9f3b5e3e3b589936abb18f2c7c
Link:
https://www.unpac.me/results/e5436282-6233-4e0f-bff6-de800a15e1c7/
SH256 hash:
837d5ed2867ffbf6b718264ecc27e620ffd9d14b1a4d2255f56b04181713830f
MD5 hash:
f336298269351704e8a3f7a5f071c82d
SHA1 hash:
ee8ba4b276bfb69be97518c994d9536eebc76e53
Link:
https://www.unpac.me/results/e5436282-6233-4e0f-bff6-de800a15e1c7/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/837d5ed2867ffbf6b718264ecc27e620ffd9d14b1a4d2255f56b04181713830f

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
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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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/182678/

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