681578d4fa37a378d08c805f74acaaab9c0f72c097888f5579554d3e4fdbf812

Analysis

max time kernel
147s
max time network
118s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01/02/2024, 06:28

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General

Target

862d555f7f10302008d6fe78ab8b022e.exe
Size

749KB
MD5

862d555f7f10302008d6fe78ab8b022e
SHA1

35b1f1b301053e9eb0e0addc530c1893898ea352
SHA256

681578d4fa37a378d08c805f74acaaab9c0f72c097888f5579554d3e4fdbf812
SHA512

fd8e5ae385b89ab79e036447f3d78f7ae6df41adb746d6b7d9cb8d0a82698d698573f3326de067a8b8042ad7bb39cf45c3b3abb8677fcbc969768c8541d63eef
SSDEEP

12288:ljXipx70Np/Z9xwy/bAHmdtYpkzz84cNZcu0uAimaLV+qvTOHsGiE:tX1/PWy/bAHmdWpCYNGu0emaZXqHsGi

Score

7^/10

persistence upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0030000000016cdc-19.dat	acprotect

Executes dropped EXE 1 IoCs

pid	Process
1420	862d555f7f10302008d6fe78ab8b022e.exe

Loads dropped DLL 3 IoCs

pid	Process
2316	862d555f7f10302008d6fe78ab8b022e.exe
2316	862d555f7f10302008d6fe78ab8b022e.exe
1420	862d555f7f10302008d6fe78ab8b022e.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x0030000000016cdc-19.dat	upx
behavioral1/memory/1420-21-0x0000000000250000-0x0000000000261000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\srtserv = "C:\\ProgramData\\srtserv\\862d555f7f10302008d6fe78ab8b022e.exe"	862d555f7f10302008d6fe78ab8b022e.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\Toolbar	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\Toolbar\Locked = "1"	explorer.exe

Modifies registry class 37 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_Classes\Local Settings	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0\NodeSlot = "1"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 19002f433a5c000000000000000000000000000000000000000000	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0 = 52003100000000008f570871122041707044617461003c0008000400efbe8f5708718f5708712a000000eb0100000000020000000000000000000000000000004100700070004400610074006100000016000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0 = 4c003100000000008f57337210204c6f63616c00380008000400efbe8f5708718f5733722a000000fe0100000000020000000000000000000000000000004c006f00630061006c00000014000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0 = 4a003100000000004158a033102054656d700000360008000400efbe8f5708714158a0332a000000ff010000000002000000000000000000000000000000540065006d007000000014000000	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\KnownFolderDerivedFolderType = "{57807898-8C4F-4462-BB63-71042380B109}"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 74003100000000008f5708711100557365727300600008000400efbeee3a851a8f5708712a000000e601000000000100000000000000000036000000000055007300650072007300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100380031003300000014000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0 = 86003100000000004158a03317003836324435357e3100006e0008000400efbe4158a0334158a0332a000000c422010000000700000000000000000000000000000038003600320064003500350035006600370066003100300033003000320030003000380064003600660065003700380061006200380062003000320032006500000018000000	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 4c003100000000008f571774100041646d696e00380008000400efbe8f5708718f5717742a00000031000000000003000000000000000000000000000000410064006d0069006e00000014000000	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic"	explorer.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1420	862d555f7f10302008d6fe78ab8b022e.exe
1420	862d555f7f10302008d6fe78ab8b022e.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1420	862d555f7f10302008d6fe78ab8b022e.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 2380	2316	862d555f7f10302008d6fe78ab8b022e.exe	28
PID 2316 wrote to memory of 2380	2316	862d555f7f10302008d6fe78ab8b022e.exe	28
PID 2316 wrote to memory of 2380	2316	862d555f7f10302008d6fe78ab8b022e.exe	28
PID 2316 wrote to memory of 2380	2316	862d555f7f10302008d6fe78ab8b022e.exe	28
PID 2316 wrote to memory of 1420	2316	862d555f7f10302008d6fe78ab8b022e.exe	29
PID 2316 wrote to memory of 1420	2316	862d555f7f10302008d6fe78ab8b022e.exe	29
PID 2316 wrote to memory of 1420	2316	862d555f7f10302008d6fe78ab8b022e.exe	29
PID 2316 wrote to memory of 1420	2316	862d555f7f10302008d6fe78ab8b022e.exe	29

C:\Users\Admin\AppData\Local\Temp\862d555f7f10302008d6fe78ab8b022e.exe
"C:\Users\Admin\AppData\Local\Temp\862d555f7f10302008d6fe78ab8b022e.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe C:\Users\Admin\AppData\Local\Temp\862d555f7f10302008d6fe78ab8b022e
  2⤵
  PID:2380
- C:\ProgramData\srtserv\862d555f7f10302008d6fe78ab8b022e.exe
  C:\ProgramData\srtserv\862d555f7f10302008d6fe78ab8b022e.exe -wait
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:1420

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies Internet Explorer settings
- Modifies registry class
PID:2068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\srtserv\862d555f7f10302008d6fe78ab8b022e.exe

Filesize
292KB

MD5
75babd1be46847fe4717a91a1d08c1a0

SHA1
6cb8030ce1c4e8104228993c033eb35111c6e35b

SHA256
e47b2e51fd700a880b5a5ff388b9908279abc0542d2ef50d86aca8a6be8f2455

SHA512
d6b4cab6eca654964f83ce418086323fc661135bebb262eb53024774da0bf09b19acf0f8d62b881801ac89e22ea39fb229dc0ebeddc72c9cf1be916a7a009cc7

Download Submit
C:\ProgramData\srtserv\862d555f7f10302008d6fe78ab8b022e.exe

Filesize
176KB

MD5
bfce00a948c10621e80e5098fd4d6137

SHA1
a53994784e471055ea84f787f5fee07185493104

SHA256
c3f8bc1a4da69a348b75c2576290e1c3d80392b591db107221b96b69df0950b9

SHA512
63ae0a9d6173982f4bf0b00c70170cd849f1b0995682fa8573435c615e5e241bfc7d5385be4c756bcdef2b97102fbb42aaa6b4331d4302a0b4bc2eeec309b7c2

Download Submit
\ProgramData\srtserv\862d555f7f10302008d6fe78ab8b022e.exe

Filesize
243KB

MD5
d46270fbf201db43572c9694a7d05dba

SHA1
88816603cba578fc15a1c801d707b07c2d36da4d

SHA256
4b1bf048bd89bd711faab1819919fa7969e8b452a02caac49759b02b802cce3f

SHA512
65a4ec76b693b516761c9ab620e824fd2e32b540418a74bc3f6c1f1f6d6059b16bae75f6cda9594c183db056448f5a7516e89b08f8d64645bd39064dc2d7002e

Download Submit
\ProgramData\srtserv\862d555f7f10302008d6fe78ab8b022e.exe

Filesize
336KB

MD5
bce948579cac3d4205980cc3859fd657

SHA1
448089b44da6a640329a70500426e53c82391df5

SHA256
e0dd2e6424080e81bf352e81614d37f10f46381a68c51d8d281f0382af19ef89

SHA512
fc39ed5710dbf010fd5bc3b6ea2fa3196d7ac422e1fa5d08bd1139a4dabfbaabbbb7a91281a123ff06e03dd34893d54f05f536f9cc2a369011ca8ebc52fcd523

Download Submit
\ProgramData\srtserv\sdata.dll

Filesize
23KB

MD5
4a68bdeb219f697115c035d5f7000ee4

SHA1
9b3e7baaceb706b5d4f3c682806a7e27603b32f2

SHA256
c505c9c35bc24243aabea8e349145c9dbff2da2ca6567fe2f750d887cc3cc27d

SHA512
b9305d262d08171df9b7c8f937c328953ce84b621cdf37ffc74b27d84f1bf364460dc6d4da40dbb94317980699fca8b7b8a9a58a409db74baba81546b0253a34

Download Submit
memory/1420-23-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/1420-26-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/1420-28-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/1420-29-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1420-21-0x0000000000250000-0x0000000000261000-memory.dmp

Filesize
68KB

Download
memory/1420-22-0x00000000776CF000-0x00000000776D0000-memory.dmp

Filesize
4KB

Download
memory/1420-17-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1420-16-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2068-14-0x0000000003A10000-0x0000000003A20000-memory.dmp

Filesize
64KB

Download
memory/2068-15-0x00000000038F0000-0x00000000038F1000-memory.dmp

Filesize
4KB

Download
memory/2068-27-0x00000000038F0000-0x00000000038F1000-memory.dmp

Filesize
4KB

Download
memory/2316-0-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2316-13-0x0000000002CF0000-0x0000000002DB3000-memory.dmp

Filesize
780KB

Download
memory/2316-25-0x0000000002CF0000-0x0000000002DB3000-memory.dmp

Filesize
780KB

Download
memory/2316-12-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2316-2-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2316-1-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download