7a7f9e7833b851ca25ef5af3daad8afca87269d829c6e53c1ce7e0da2dbfbb97

Analysis

max time kernel
28s
max time network
47s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
20-10-2022 12:33

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General

Target

7a7f9e7833b851ca25ef5af3daad8afca87269d829c6e53c1ce7e0da2dbfbb97.dll
Size

143KB
MD5

4b2f40acf5e904255dc1dff4355d3b20
SHA1

8234c0f0b50704c3fb17de3aa021613a963c5e89
SHA256

7a7f9e7833b851ca25ef5af3daad8afca87269d829c6e53c1ce7e0da2dbfbb97
SHA512

2c6400f9d99f51041776fded4cf347dad7382d03b57b9ca15ff57dccaef5c21f6120aa4c14139a65ec2405e9b2cc7f8c2d096af7f621d97701d7f36d8601d17c
SSDEEP

3072:rDw0Ry3VwKjSU08A+x8iTk7fVytqdckfNatl/nRH8IyWhGi6W8:gi1+Z0H+nI5GnlcIykBw

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2008	rundll32mgr.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2008-64-0x0000000000400000-0x000000000042A000-memory.dmp	upx

Loads dropped DLL 4 IoCs

pid	Process
608	rundll32.exe
608	rundll32.exe
2008	rundll32mgr.exe
2008	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1724	2008	WerFault.exe	29

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1648 wrote to memory of 608	1648	rundll32.exe	28
PID 1648 wrote to memory of 608	1648	rundll32.exe	28
PID 1648 wrote to memory of 608	1648	rundll32.exe	28
PID 1648 wrote to memory of 608	1648	rundll32.exe	28
PID 1648 wrote to memory of 608	1648	rundll32.exe	28
PID 1648 wrote to memory of 608	1648	rundll32.exe	28
PID 1648 wrote to memory of 608	1648	rundll32.exe	28
PID 608 wrote to memory of 2008	608	rundll32.exe	29
PID 608 wrote to memory of 2008	608	rundll32.exe	29
PID 608 wrote to memory of 2008	608	rundll32.exe	29
PID 608 wrote to memory of 2008	608	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7a7f9e7833b851ca25ef5af3daad8afca87269d829c6e53c1ce7e0da2dbfbb97.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1648
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7a7f9e7833b851ca25ef5af3daad8afca87269d829c6e53c1ce7e0da2dbfbb97.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:608
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:2008
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 180
      4⤵
      Program crash
      PID:1724

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
106KB

MD5
fe36fb1073e6f8fa14d7250501a29aaf

SHA1
6c7e01278362797dabcff3e666b68227cb9af10f

SHA256
f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6

SHA512
8584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f

Download Submit
\Users\Admin\AppData\Local\Temp\~TM1FE1.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
\Users\Admin\AppData\Local\Temp\~TM20AC.tmp

Filesize
1.1MB

MD5
9b98d47916ead4f69ef51b56b0c2323c

SHA1
290a80b4ded0efc0fd00816f373fcea81a521330

SHA256
96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

SHA512
68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
106KB

MD5
fe36fb1073e6f8fa14d7250501a29aaf

SHA1
6c7e01278362797dabcff3e666b68227cb9af10f

SHA256
f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6

SHA512
8584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
106KB

MD5
fe36fb1073e6f8fa14d7250501a29aaf

SHA1
6c7e01278362797dabcff3e666b68227cb9af10f

SHA256
f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6

SHA512
8584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f

Download Submit
memory/608-54-0x0000000000000000-mapping.dmp

Download
memory/608-55-0x0000000075811000-0x0000000075813000-memory.dmp

Filesize
8KB

Download
memory/608-56-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2008-59-0x0000000000000000-mapping.dmp

Download
memory/2008-64-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2008-65-0x0000000000230000-0x000000000025A000-memory.dmp

Filesize
168KB

Download
memory/2008-66-0x0000000077290000-0x0000000077410000-memory.dmp

Filesize
1.5MB

Download