MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb2e173430a404a7cf52a54db1ff96b0de6eed1b8953d96b57e2780e45e71db9. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cb2e173430a404a7cf52a54db1ff96b0de6eed1b8953d96b57e2780e45e71db9
SHA3-384 hash: 0f8214e4226e0580025e37b269b8fe4d853b13f0991dc537f99b34317c76f88f66eb40d7afc2ae31c040fe07269ca722
SHA1 hash: 515e8f43b3261329f2da96a7f0e873061c33cbd8
MD5 hash: 357a14cfd77aeee6ccdefd6306790b6e
humanhash: washington-butter-cup-sierra
File name:PO-23562#TZ232.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'549'824 bytes
First seen:2021-01-19 07:53:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:jjha80GloNTULD1UJ8rYPpx8ET98URDej5i54xDQk9PZx:jN0GloFOD1c5PpuEpvaj5scD9PZ
Threatray 3'557 similar samples on MalwareBazaar
TLSH 3F75D69CB55071EFD86FC0B28AA83DE4EA50297B470B4243912725EDDA7D897CF184F2
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: cbdjo.cam
Sending IP: 111.90.159.32
From: Jina Choi <inform@sungdomc.co.kr>
Reply-To: export@sungdomc.co.kr
Subject: RE:PO-23562#TZ232
Attachment: PO-23562TZ232.rar (contains "PO-23562#TZ232.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
158
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO-23562#TZ232.exe
Verdict:
Suspicious activity
Analysis date:
2021-01-19 08:00:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0919e1ea-586f-428b-9be0-1f716592e74b

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/112820/
Detection(s):
Win.Packed.Genkryptik-9822492-0
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
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/584647
Signature
Binary contains a suspicious time stamp
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected unpacking (changes PE section rights)
Found malware configuration
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
PE file contains section with special chars
PE file has nameless sections
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 341360 Sample: PO-23562#TZ232.exe Startdate: 19/01/2021 Architecture: WINDOWS Score: 100 40 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 9 other signatures 2->46 10 PO-23562#TZ232.exe 3 2->10         started        process3 file4 32 C:\Users\user\...\PO-23562#TZ232.exe.log, ASCII 10->32 dropped 56 Detected unpacking (changes PE section rights) 10->56 58 Tries to detect virtualization through RDTSC time measurements 10->58 60 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 10->60 14 PO-23562#TZ232.exe 10->14         started        17 PO-23562#TZ232.exe 10->17         started        signatures5 process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 Queues an APC in another process (thread injection) 14->68 19 explorer.exe 14->19 injected process8 dnsIp9 34 every1no1.com 34.102.136.180, 49738, 80 GOOGLEUS United States 19->34 36 www.youthdaycalgary.com 66.96.160.149, 49737, 80 BIZLAND-SDUS United States 19->36 38 3 other IPs or domains 19->38 48 System process connects to network (likely due to code injection or exploit) 19->48 23 colorcpl.exe 19->23         started        26 autofmt.exe 19->26         started        signatures10 process11 signatures12 50 Modifies the context of a thread in another process (thread injection) 23->50 52 Maps a DLL or memory area into another process 23->52 54 Tries to detect virtualization through RDTSC time measurements 23->54 28 cmd.exe 1 23->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/cb2e173430a404a7cf52a54db1ff96b0de6eed1b8953d96b57e2780e45e71db9/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-01-19 07:31:06 UTC
AV detection:
15 of 46 (32.61%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zmxbonbquqckpt2suvg3d74wwdpg53i3rfj5s22x4j4a4rphdw4q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
02cd99f8d843c4c63d55b4bebe044e5205e81f31ad36af77b9a99734c074f0a8
Formbook
1498cb2f9fa31c5126db058a10187fa76040789d257ac2b61f4d4bbbe77a986c
Formbook
178ab8c2af1c8e5a0782d79d4910efc280b6fcd1213d84cf5899d28ba232bfaa
Formbook
1f9d1bffe188b76bbd97cb2fd59ab47248b71fcede2f415ca29fcc0f1040bbee
Formbook
2ba03179153cd1efd2098bf6fc7870efb2b3a5a60f2b516c4c3dace977627289
Formbook
851353adb58e4070df07037da80543a4d67d6eceee20659fe9c5cb5ef4c1a344
Formbook
89997eff59d390acca1d0b385aa4714417178afb9011ac5d07e290fac2ca51b9
Formbook
9728048925e7faf422c4d7bacfaa90fae8bdcc9efad8a0868b456f3d4b213d09
Formbook
a1558391914f4235dfdcdddcdf0de915a800541a4271feb4aff34af82b83a935
Formbook
f03367cb1758bddd8877e7aca02223797330fc8482d6ffce6f397730ffefd53f
Formbook
+ 3'547 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210119-5ef39xsfsx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.styrelseforum.com/p95n/
Unpacked files
SH256 hash:
2339f0c6042cb496ad8d0771de5fe11e6ea898566dc49511b245f417a6f9c014
MD5 hash:
c5aa83df2c9f39b0d7687fef50af3e11
SHA1 hash:
14ce7a3376fe506a8b2bf2de4602d2e9967bf8cc
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/be75ec8c-693e-4f99-b8bb-fe7e2defc365/
Parent samples :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 hash:
7654ad9e67599d376ad77c7b23273fd334f0ea8c07394dd17d72fcc90a0b0b6f
MD5 hash:
f40a2d4ae8e4d031f0e7ff0caf28ebbf
SHA1 hash:
99e874b66617bcd9566db86de732c3fb55f5a6b0
Link:
https://www.unpac.me/results/be75ec8c-693e-4f99-b8bb-fe7e2defc365/
SH256 hash:
fdf3c8d3ee39a34c23ba15b2ab0bb6ee2706e4c5f296a9df0f80cd6db2d2173c
MD5 hash:
a42d9bf3491295d18c2b58bbb03f8a3b
SHA1 hash:
74f3795f335ccb1cd1c1228758c3a30155b9f811
Link:
https://www.unpac.me/results/be75ec8c-693e-4f99-b8bb-fe7e2defc365/
SH256 hash:
cb2e173430a404a7cf52a54db1ff96b0de6eed1b8953d96b57e2780e45e71db9
MD5 hash:
357a14cfd77aeee6ccdefd6306790b6e
SHA1 hash:
515e8f43b3261329f2da96a7f0e873061c33cbd8
Link:
https://www.unpac.me/results/be75ec8c-693e-4f99-b8bb-fe7e2defc365/
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/cb2e173430a404a7cf52a54db1ff96b0de6eed1b8953d96b57e2780e45e71db9

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:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

rar bdab754221a0ceb30ee7a0d01840223769395fb3d777ca126410274d2dc76abe

Formbook

Executable exe cb2e173430a404a7cf52a54db1ff96b0de6eed1b8953d96b57e2780e45e71db9

(this sample)

  
Dropped by
MD5 3c83ba0f79d0785ad84ce8e704bc9a7d
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/112820/
  
Dropped by
SHA256 bdab754221a0ceb30ee7a0d01840223769395fb3d777ca126410274d2dc76abe

Comments