1703308ea3e20f425f98440ad85cc737f8ed15fffdd870de6109967d1fba8c71

Analysis

max time kernel
145s
max time network
118s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
12/02/2024, 03:28

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General

Target

9620b7482d7daea279a6dfb366c1eb22.exe
Size

432KB
MD5

9620b7482d7daea279a6dfb366c1eb22
SHA1

ff62752d12698cc515d39f430754345ceeb0866f
SHA256

1703308ea3e20f425f98440ad85cc737f8ed15fffdd870de6109967d1fba8c71
SHA512

58d754b2a6ca2bdd0ca3ea767173271ab0637d0e407ffd52c2ab1714cecd99575ecaa61dd43c9c8f06b36a5ff8ed991dcae722f7e611de97acc268ca3ea71d0c
SSDEEP

6144:LiMmXRH6pXfSb0ceR/VFAHh1kgcs0HW1kyApHhP+gDzvRAjZGrWmsu4F:5MMpXKb0hNGh1kG0HWnALbo

Score

10^/10

aspackv2 persistence ransomware

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe HelpMe.exe"	9620b7482d7daea279a6dfb366c1eb22.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe HelpMe.exe"	HelpMe.exe

Renames multiple (91) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

ASPack v2.12-2.42 9 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x000a000000013a1a-2.dat	aspack_v212_v242
behavioral1/files/0x000a000000014534-42.dat	aspack_v212_v242
behavioral1/files/0x0001000000000026-59.dat	aspack_v212_v242
behavioral1/files/0x000a000000013a1a-60.dat	aspack_v212_v242
behavioral1/files/0x000a000000013a1a-250.dat	aspack_v212_v242
behavioral1/files/0x000a000000013a1a-264.dat	aspack_v212_v242
behavioral1/files/0x000a000000013a1a-276.dat	aspack_v212_v242
behavioral1/files/0x000a000000013a1a-288.dat	aspack_v212_v242
behavioral1/files/0x000a000000013a1a-341.dat	aspack_v212_v242

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	9620b7482d7daea279a6dfb366c1eb22.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	HelpMe.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	9620b7482d7daea279a6dfb366c1eb22.exe

Executes dropped EXE 1 IoCs

pid	Process
1096	HelpMe.exe

Loads dropped DLL 31 IoCs

pid	Process
2948	9620b7482d7daea279a6dfb366c1eb22.exe
2948	9620b7482d7daea279a6dfb366c1eb22.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe
1096	HelpMe.exe

Enumerates connected drives 3 TTPs 46 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\H:	HelpMe.exe
File opened (read-only)	\??\P:	HelpMe.exe
File opened (read-only)	\??\U:	HelpMe.exe
File opened (read-only)	\??\O:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\K:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\L:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\R:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\U:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\X:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\B:	HelpMe.exe
File opened (read-only)	\??\I:	HelpMe.exe
File opened (read-only)	\??\A:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\V:	HelpMe.exe
File opened (read-only)	\??\X:	HelpMe.exe
File opened (read-only)	\??\N:	HelpMe.exe
File opened (read-only)	\??\V:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\A:	HelpMe.exe
File opened (read-only)	\??\G:	HelpMe.exe
File opened (read-only)	\??\M:	HelpMe.exe
File opened (read-only)	\??\J:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\W:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\Z:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\K:	HelpMe.exe
File opened (read-only)	\??\T:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\E:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\E:	HelpMe.exe
File opened (read-only)	\??\R:	HelpMe.exe
File opened (read-only)	\??\S:	HelpMe.exe
File opened (read-only)	\??\T:	HelpMe.exe
File opened (read-only)	\??\W:	HelpMe.exe
File opened (read-only)	\??\Y:	HelpMe.exe
File opened (read-only)	\??\B:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\I:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\M:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\J:	HelpMe.exe
File opened (read-only)	\??\Q:	HelpMe.exe
File opened (read-only)	\??\H:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\Y:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\L:	HelpMe.exe
File opened (read-only)	\??\O:	HelpMe.exe
File opened (read-only)	\??\N:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\P:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\Q:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\S:	9620b7482d7daea279a6dfb366c1eb22.exe
File opened (read-only)	\??\Z:	HelpMe.exe
File opened (read-only)	\??\G:	9620b7482d7daea279a6dfb366c1eb22.exe

Drops autorun.inf file 1 TTPs 3 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File opened for modification	C:\AUTORUN.INF	9620b7482d7daea279a6dfb366c1eb22.exe
File opened for modification	F:\AUTORUN.INF	HelpMe.exe
File opened for modification	F:\AUTORUN.INF	9620b7482d7daea279a6dfb366c1eb22.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\HelpMe.exe	HelpMe.exe
File created	C:\Windows\SysWOW64\notepad.exe.exe	HelpMe.exe
File created	C:\Windows\SysWOW64\HelpMe.exe	9620b7482d7daea279a6dfb366c1eb22.exe
File created	C:\Windows\SysWOW64\HelpMe.exe	HelpMe.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Internet Explorer\iexplore.exe.exe	HelpMe.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1096	HelpMe.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2948 wrote to memory of 1096	2948	9620b7482d7daea279a6dfb366c1eb22.exe	28
PID 2948 wrote to memory of 1096	2948	9620b7482d7daea279a6dfb366c1eb22.exe	28
PID 2948 wrote to memory of 1096	2948	9620b7482d7daea279a6dfb366c1eb22.exe	28
PID 2948 wrote to memory of 1096	2948	9620b7482d7daea279a6dfb366c1eb22.exe	28

C:\Users\Admin\AppData\Local\Temp\9620b7482d7daea279a6dfb366c1eb22.exe
"C:\Users\Admin\AppData\Local\Temp\9620b7482d7daea279a6dfb366c1eb22.exe"
1⤵
- Modifies WinLogon for persistence
- Drops startup file
- Loads dropped DLL
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2948
- C:\Windows\SysWOW64\HelpMe.exe
  C:\Windows\system32\HelpMe.exe
  2⤵
  - Modifies WinLogon for persistence
  - Drops startup file
  - Executes dropped EXE
  - Loads dropped DLL
  - Enumerates connected drives
  - Drops autorun.inf file
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  PID:1096

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\$Recycle.Bin\S-1-5-21-3470981204-343661084-3367201002-1000\desktop.ini.exe

Filesize
433KB

MD5
21435ba8df1a821cd895a9fa2fb8f7f5

SHA1
979748828805984f255a8acac8b783d6b018e4ac

SHA256
75f9907ce61302b54fe190903f81b1fb30c8283290d4915e40b31aa8c173db3d

SHA512
7f8ed2dd40d609f6e54bc64dfabfee42e35be9795c0dac83e01dc7c3df139933b5dac6af5f5db9fca35374c76a8faadd992027152922d7d19419a3d5db3d5c5b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

Filesize
1KB

MD5
685fa83ea6d4fec5a749b94321b6fd9d

SHA1
461005a637793362bd5709f6423719be8512a308

SHA256
4476f98de5e3e46908682c7ae0db779124631a654ce7293203aab791f2c6bc6e

SHA512
d89f32e94e64687a31a88b399d07a9e92598ccecd44ff6350cf833c12cda7b88dca359bd5361b5be0f7f7e0c6b43923a7dc80c8fed30ded712f822cd58ca563e

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

Filesize
950B

MD5
c8e6803f368497fbfe5550cb304466c8

SHA1
eed869783eb7d32309588f732c5988a645898899

SHA256
bdc98e8330b80c53a9f0d20e029a8e40537c3c3bd21f57c8f398ba924d6cfead

SHA512
20656b7717abc10feaa26979a787fa035afd278b78923fdbad7845c9be9fe67be26938732c8e73d4fb2c9d4e37b31d1e2b2bfbaac0101695596a8fa4086d1c90

Download Submit
F:\AUTORUN.INF

Filesize
145B

MD5
ca13857b2fd3895a39f09d9dde3cca97

SHA1
8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

SHA256
cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

SHA512
55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

Download Submit
F:\AutoRun.exe

Filesize
425KB

MD5
00b23ffa3bc25d95fa242f701831b46a

SHA1
e12fbac2fb3b28da0a9f1023cfd161527cd5d3cd

SHA256
47edde1233915a9094a6d28240385d65421e58c287d746eb6c2092f430b99636

SHA512
dee95e15f98961382a0aaa9529d67a00386e19ac265ba01b6d1d92bb956265b13b315c17b8026f61c9474aae1ae7471c65ac83292ce29bee1bb61037cb4b5915

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
432KB

MD5
26cad3e27cc340f35739bcce86829751

SHA1
3114062cdfc324c79825dcb57ec1c6402b23f29f

SHA256
18239a12185c830399268e0c988d48eb0132a9c77292a1a68d61872ab1e14f66

SHA512
4a43d3e74fdd5027fd7fea0b6ec7607f0d0b3d5650edb2307e2d4ac55e1adfb0746b2833a84972332eb46bd031f4c125623d64b927027f55b30d3fce7721a24c

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
372KB

MD5
5f388842dea059aa27f572420e4c98c5

SHA1
299cc91b7a373152e688b5afbe54e58d67e41b55

SHA256
afb6cb76d18a0491698bbbc3b8148babfdb24b668bb599fc058f277c5228c602

SHA512
c0cae7cbc31ebb04f90d5a2f26e39ebc150495ffa9592e16280e88af5eb7d39c00d159f5c64fdd29beb68852f3b7b27ff1abe0ffe5a184961c678b9f94507277

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
203KB

MD5
9be879f8a66edd3564624fac65cc94c5

SHA1
c979ea8b37de30c63c8ed454d424760ede2dffdf

SHA256
8dae3c6dcbcb98c2da5ad5113fe45ab5b519197329886adc71b34b415c6d3aa8

SHA512
beb68ac0d84a5c1b25385f0d9b5475008e2e4d7ab0a8284754da3646ebeb468ef296f1664d8c24cb18798f33fcd787f0b2a5707eaa99b4684287d18841e3b484

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
295KB

MD5
b93480402a2f0509b73a0cc300fdc5cc

SHA1
892aa07beb4ab25e31b2795b7c6851160c5627bc

SHA256
9761bc7b49264c9be0b10f179829d805c17f9ba3f31f229a4883911b85e4c75b

SHA512
9d5c5ed451bfee959f0859e3f2a26187e39b27654b64b17561ccadfc62aea47f3c400eca90315683cecf1d649a9831a03437b699b427e45aaa60bcf001616dd7

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
79KB

MD5
46a0d2240676e7a5c92220aa5a1da7c5

SHA1
1326ec586f1ac5f0ac7dcd4d4bf3d3ad63cf8a54

SHA256
2bc1db85b42cfb89e8bb114f4ddfe9e41f2c3f4b49b8d0b2cd34fa2080b8e8b4

SHA512
f059aeae4d1bf1e70174020aab3ebf3a82f6bffb778e049a2ca760f267ea7a36d7126970c1ec0638e90b0806b158d0f85a8965b6a7a62485724e7c69d7671854

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
140KB

MD5
760f8566c14b9537807c9655ca5e5581

SHA1
1c46b84886a7e2dc50e376069229f4c75bff977d

SHA256
61adf4ffd5b1589677d90c12b6522903746fc2ebfdcab35b95e12c12c6719c86

SHA512
153882d2b2870ff1da159a9057a82559e64ddf82838e7168af2a467ca93a8348f5d91ca9923ee05ce80fb364babd51cad9cd62f743f6111b7976a0d8bca11ebc

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
264KB

MD5
f068850fb1f912d5b98dcc3256d94907

SHA1
0af54d0331114e1aeb4401ff7db7c13a0b74320d

SHA256
338d9bef9b2efcef243c34c7186dd72ba3252827ebe3fe77199a5b124f3a2eaa

SHA512
3b07c27ffb6a1be6153169f87c2ed3d7c21ee5ca156391aac8acc411e66954bcbf571e5bd3d8df3e928f7bb1e73b222e3c7afb001109ff36940e14be861e2669

Download Submit
memory/1096-9-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2948-1-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download