MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1bb732330744dda9232ab0e291c9b5d5f8e76e9c649ed9e1e9f4327a0c7387dc. 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 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1bb732330744dda9232ab0e291c9b5d5f8e76e9c649ed9e1e9f4327a0c7387dc
SHA3-384 hash: 05c1beec6f0134144a1735b37cefd625c0483a7006af2f2e703dcd6aabb9fa409e301d42d6bb8c1b6e472a824327035f
SHA1 hash: 333fba35617041fe3e8e2c3a848dee63b16f39ae
MD5 hash: f2ef364a14b6e3e07975c18755edb060
humanhash: nevada-india-dakota-kilo
File name:REMK-4000844.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:357'768 bytes
First seen:2023-09-27 07:34:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9dda1a1d1f8a1d13ae0297b47046b26e (64 x Formbook, 40 x GuLoader, 25 x RemcosRAT)
ssdeep 6144:LnPdudwDIgwJ1b/T+TY2j1AdqhAKKDCy1SFV+SSJvNxpSGbaKctu7hj:LnPdUzbbi8WrhALDBQV+SS1JrbcEt
Threatray 110 similar samples on MalwareBazaar
TLSH T1F574126E3305CCB7D82303766C3996B79EDA6D190979A30F23347A79B5323F2141EA52
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon e4dcd8c4d4d4c4d4 (95 x AgentTesla, 51 x Formbook, 12 x RemcosRAT)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
280
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
REMK-4000844.exe
Verdict:
Malicious activity
Analysis date:
2023-09-27 07:34:52 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d99d5428-2c45-43e9-8650-8b0308d911b9

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/451491/
Detection(s):
SecuriteInfo.com.Trojan.Loader.1550.25242.26755.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Unauthorized injection to a recently created process
Launching a process
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/6513db280870810f01877b79/reports/c40ec777-f3f0-4e6a-8fc8-e904aa92aa0f/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/1bb732330744dda9232ab0e291c9b5d5f8e76e9c649ed9e1e9f4327a0c7387dc
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/79f7dd65-b1b9-4ee7-9d43-421123a1af03
Result
Threat name:
FormBook, NSISDropper
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1315042
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Machine Learning detection for dropped file
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1315042 Sample: REMK-4000844.exe Startdate: 27/09/2023 Architecture: WINDOWS Score: 100 42 Malicious sample detected (through community Yara rule) 2->42 44 Antivirus detection for URL or domain 2->44 46 Antivirus / Scanner detection for submitted sample 2->46 48 4 other signatures 2->48 10 REMK-4000844.exe 18 2->10         started        process3 file4 30 C:\Users\user\AppData\Local\Temp\zhusl.exe, PE32 10->30 dropped 13 zhusl.exe 10->13         started        process5 signatures6 62 Antivirus detection for dropped file 13->62 64 Multi AV Scanner detection for dropped file 13->64 66 Machine Learning detection for dropped file 13->66 68 2 other signatures 13->68 16 zhusl.exe 13->16         started        process7 signatures8 38 Maps a DLL or memory area into another process 16->38 40 Queues an APC in another process (thread injection) 16->40 19 ChDPdcrnaW.exe 16->19 injected process9 process10 21 wscript.exe 13 19->21         started        signatures11 50 Tries to steal Mail credentials (via file / registry access) 21->50 52 Tries to harvest and steal browser information (history, passwords, etc) 21->52 54 Modifies the context of a thread in another process (thread injection) 21->54 56 Maps a DLL or memory area into another process 21->56 24 explorer.exe 2 1 21->24 injected 28 ChDPdcrnaW.exe 21->28 injected process12 dnsIp13 32 www.blackgrow.info 203.161.53.83, 49726, 49727, 49728 VNPT-AS-VNVNPTCorpVN Malaysia 24->32 34 mydesigneredge.com 162.144.13.104, 49746, 49747, 49748 UNIFIEDLAYER-AS-1US United States 24->34 36 14 other IPs or domains 24->36 58 System process connects to network (likely due to code injection or exploit) 24->58 60 Performs DNS queries to domains with low reputation 24->60 signatures14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1bb732330744dda9232ab0e291c9b5d5f8e76e9c649ed9e1e9f4327a0c7387dc/
Threat name:
Win32.Trojan.NSISInject
Create hunting rule
Status:
Malicious
First seen:
2023-09-27 01:32:47 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
26 of 36 (72.22%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=do3temyhito2sizkwdrjdsnv2x4oo3u4mspntypj6qzhuddtq7oa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
16c15ef7330e3f3d1915b88ee65986e3c49ae85d26e87e11b2a2f0e7b9202626
Formbook
4fdfe40f48c52d70c5f3bade65c62b252e26808b6893ffd844a0cec8c9612b09
Formbook
51a15921691e898e879b022164f0cfd0cacdd2214116ac176dab7b9d124f8bc9
Formbook
58357272406c20e677f34777d792bdecc67f8502616621858a609d9cd8e3bd7e
Formbook
59e8d4adc87713d6243f1130289d36da2fbd84aca576a0bc1a99d1728f29c756
Formbook
6b39391435f77016d7a9bb06c31345577faa06f44710e05bfc6ea15e7a47c027
Formbook
86c93b4c01ca5cf2a505360e36677d0f5e5c159ba32a84019c8ef0e1e28cd596
Formbook
874ee8f230f9d4ff0446d583f123f9822a34e990d57fcb235789c5bfbfebb73d
Formbook
c8122debaede9ed9ffba560e7a8367c38801bc6879c51abaaf628a3e176cf1e1
Formbook
+ 100 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230927-jen4nsgh7t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
5c6cab4df7eac12e2605578a45718fb9f1dfdfd771226d7979cd29a0b3d2a061
MD5 hash:
8cc00f0ac2430050ce22ec2d68d7efcb
SHA1 hash:
81182740646e5524b0acdcbe61fb61514ebac2f3
Link:
https://www.unpac.me/results/a0cd35a7-05ea-42d7-a5fd-c0c9483cab99/
SH256 hash:
1bb732330744dda9232ab0e291c9b5d5f8e76e9c649ed9e1e9f4327a0c7387dc
MD5 hash:
f2ef364a14b6e3e07975c18755edb060
SHA1 hash:
333fba35617041fe3e8e2c3a848dee63b16f39ae
Link:
https://www.unpac.me/results/a0cd35a7-05ea-42d7-a5fd-c0c9483cab99/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1bb732330744/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/1bb732330744dda9232ab0e291c9b5d5f8e76e9c649ed9e1e9f4327a0c7387dc

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:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Malspam

Formbook

Executable exe 1bb732330744dda9232ab0e291c9b5d5f8e76e9c649ed9e1e9f4327a0c7387dc

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/451491/

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