a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28

General

Target

a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe
Size

556KB
MD5

3bcaa9873ded778495f67de61cfe2da8
SHA1

7704a226e6ad723009c635faa89c5969061f8092
SHA256

a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28
SHA512

1abb17be9c9202d60e5d51659a4f23577a5370f999321d52093370f2107304896e6447b6201aeb709c701aa82b95d7914b0043f76da86b310a3635a1e63aa5de
SSDEEP

12288:KYP2lMmUeX0WtUFt3lgQ4Z4O/z5sqsON4xjciuDWsfq48m3F:KYP2lMtcS/3K2UrrasfJ

Score

7^/10

Malware Config

Signatures

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rundll32 .exe	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rundll32 .exe	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe
936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\rundll32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\rundll32 .exe"	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe
936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe
936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe
936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe
936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe
936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe
936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe
936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe
936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe
936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe
936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 936 wrote to memory of 1520	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe	27
PID 936 wrote to memory of 1520	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe	27
PID 936 wrote to memory of 1520	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe	27
PID 936 wrote to memory of 1520	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe	27
PID 1520 wrote to memory of 1444	1520	cmd.exe	29
PID 1520 wrote to memory of 1444	1520	cmd.exe	29
PID 1520 wrote to memory of 1444	1520	cmd.exe	29
PID 1520 wrote to memory of 1444	1520	cmd.exe	29
PID 936 wrote to memory of 1388	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe	30
PID 936 wrote to memory of 1388	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe	30
PID 936 wrote to memory of 1388	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe	30
PID 936 wrote to memory of 1388	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe	30
PID 936 wrote to memory of 1748	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe	31
PID 936 wrote to memory of 1748	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe	31
PID 936 wrote to memory of 1748	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe	31
PID 936 wrote to memory of 1748	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe	31
PID 936 wrote to memory of 1748	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe	31
PID 936 wrote to memory of 1748	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe	31
PID 936 wrote to memory of 1748	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe	31
PID 936 wrote to memory of 1748	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe	31
PID 936 wrote to memory of 1748	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe	31
PID 936 wrote to memory of 1748	936	a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe	31
PID 1444 wrote to memory of 1112	1444	wscript.exe	32
PID 1444 wrote to memory of 1112	1444	wscript.exe	32
PID 1444 wrote to memory of 1112	1444	wscript.exe	32
PID 1444 wrote to memory of 1112	1444	wscript.exe	32

C:\Users\Admin\AppData\Local\Temp\a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe
"C:\Users\Admin\AppData\Local\Temp\a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:936
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\java.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1520
- - C:\Windows\SysWOW64\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\invs.vbs" "C:\Users\Admin\AppData\Local\Temp\java2.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1444
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\java2.bat" "
      4⤵
      Drops startup file
      PID:1112
- C:\Windows\Temp\svsbhost.exe
  C:\Windows\Temp\svsbhost.exe
  2⤵
  PID:1388
- C:\Windows\Temp\svsbhost.exe
  C:\Windows\Temp\svsbhost.exe
  2⤵
  PID:1748

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\invs.vbs

Filesize
78B

MD5
c578d9653b22800c3eb6b6a51219bbb8

SHA1
a97aa251901bbe179a48dbc7a0c1872e163b1f2d

SHA256
20a98a7e6e137bb1b9bd5ef6911a479cb8eac925b80d6db4e70b19f62a40cce2

SHA512
3ae6dc8f02d1a78e1235a0782b632972da5a74ab32287cc41aa672d4fa4a9d34bb5fc50eba07b6915f2e61c402927cd5f6feeb7f7602afa2f64e91efb3b7fc4d

Download Submit
C:\Users\Admin\AppData\Local\Temp\java.bat

Filesize
47B

MD5
81bf5400486e5da45ba0c6c1399d843f

SHA1
d70a7c4d3f3057a3ef5b8b1c764b40b3d3b4d59d

SHA256
d1a915a5e0286b1648a6e094f52813e2b5766dce3acf6342b297f7ca113545f1

SHA512
ebeee9eb5249ee1b278bf6c1fbcd91e4c073a241203f218dfa2edfa708a37679c6e6a78751de55b4640a024b32ce4389bd5d931401309163950cd15b4a91c140

Download Submit
C:\Users\Admin\AppData\Local\Temp\java2.bat

Filesize
151B

MD5
ed28c618f7d8306e3736432b58bb5d27

SHA1
441e6dab70e31d9c599fcd9e2d32009038781b42

SHA256
d9aa03911260779b1f8a9b046a7ecf7aa87b0f13c762491fe8e06c482bac09a3

SHA512
4257d8839e881a9ab6de6230a9df1e81456cb796eb9ee2361789fa5fe4c81b297ed1c472f91d97bb0b2ebdb6acadb924617e6ffd32fc96d8ddcebf8fee4a7880

Download Submit
C:\Users\Admin\AppData\Local\Temp\rundll32-.txt

Filesize
556KB

MD5
3bcaa9873ded778495f67de61cfe2da8

SHA1
7704a226e6ad723009c635faa89c5969061f8092

SHA256
a15025bd38edec3bba7cf949135d14addd7f46858d8a0a845a9288ccb0200e28

SHA512
1abb17be9c9202d60e5d51659a4f23577a5370f999321d52093370f2107304896e6447b6201aeb709c701aa82b95d7914b0043f76da86b310a3635a1e63aa5de

Download Submit
\Windows\Temp\svsbhost.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
\Windows\Temp\svsbhost.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/936-77-0x0000000001E75000-0x0000000001E86000-memory.dmp

Filesize
68KB

Download
memory/936-56-0x0000000001E75000-0x0000000001E86000-memory.dmp

Filesize
68KB

Download
memory/936-54-0x0000000075A81000-0x0000000075A83000-memory.dmp

Filesize
8KB

Download
memory/936-76-0x0000000074290000-0x000000007483B000-memory.dmp

Filesize
5.7MB

Download
memory/936-55-0x0000000074290000-0x000000007483B000-memory.dmp

Filesize
5.7MB

Download
memory/1748-64-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1748-71-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1748-70-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1748-69-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1748-68-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1748-67-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1748-63-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

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