33d8ce2d4740dbc2544a1468d5f4bc61620cd27fd8bb00847830385448e59407

General

Target

33d8ce2d4740dbc2544a1468d5f4bc61620cd27fd8bb00847830385448e59407.exe
Size

1.2MB
MD5

9281704cfab3fd104210192e530ecd87
SHA1

e961be8f0f4bbc126ba393ddb4f880b1114075ca
SHA256

33d8ce2d4740dbc2544a1468d5f4bc61620cd27fd8bb00847830385448e59407
SHA512

38d619a804af7eb2713381651c0e8112838d3c89addcdf9f2ae79186984f74ac39f14cda6f64f6d961ef757e9bb5c122b43cdc28d50b1d89892a8571d983c274
SSDEEP

24576:XI39dFNVWfBZz3C27Sv59nOo/xQjU0LZxp5LyJyFV/uN4vxt:X6dFqPt+59Ooi4GZ/dywuCt

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
4640	is-7G45P.tmp
1284	previewer.exe
4392	previewer.exe

Loads dropped DLL 3 IoCs

pid	Process
4640	is-7G45P.tmp
4640	is-7G45P.tmp
4640	is-7G45P.tmp

Unexpected DNS network traffic destination 1 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	51.159.66.125

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 7 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\RL Previewer\is-LLKMD.tmp	is-7G45P.tmp
File created	C:\Program Files (x86)\RL Previewer\is-EGRS5.tmp	is-7G45P.tmp
File created	C:\Program Files (x86)\RL Previewer\is-OVTI8.tmp	is-7G45P.tmp
File opened for modification	C:\Program Files (x86)\RL Previewer\unins000.dat	is-7G45P.tmp
File opened for modification	C:\Program Files (x86)\RL Previewer\previewer.exe	is-7G45P.tmp
File created	C:\Program Files (x86)\RL Previewer\unins000.dat	is-7G45P.tmp
File created	C:\Program Files (x86)\RL Previewer\is-2T8JM.tmp	is-7G45P.tmp

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

System Information Discovery
T1082
Runs net.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1284	previewer.exe
Token: SeDebugPrivilege	4392	previewer.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1100 wrote to memory of 4640	1100	33d8ce2d4740dbc2544a1468d5f4bc61620cd27fd8bb00847830385448e59407.exe	70
PID 1100 wrote to memory of 4640	1100	33d8ce2d4740dbc2544a1468d5f4bc61620cd27fd8bb00847830385448e59407.exe	70
PID 1100 wrote to memory of 4640	1100	33d8ce2d4740dbc2544a1468d5f4bc61620cd27fd8bb00847830385448e59407.exe	70
PID 4640 wrote to memory of 648	4640	is-7G45P.tmp	71
PID 4640 wrote to memory of 648	4640	is-7G45P.tmp	71
PID 4640 wrote to memory of 648	4640	is-7G45P.tmp	71
PID 4640 wrote to memory of 1284	4640	is-7G45P.tmp	72
PID 4640 wrote to memory of 1284	4640	is-7G45P.tmp	72
PID 4640 wrote to memory of 1284	4640	is-7G45P.tmp	72
PID 648 wrote to memory of 3236	648	net.exe	74
PID 648 wrote to memory of 3236	648	net.exe	74
PID 648 wrote to memory of 3236	648	net.exe	74
PID 4640 wrote to memory of 4392	4640	is-7G45P.tmp	75
PID 4640 wrote to memory of 4392	4640	is-7G45P.tmp	75
PID 4640 wrote to memory of 4392	4640	is-7G45P.tmp	75

C:\Users\Admin\AppData\Local\Temp\33d8ce2d4740dbc2544a1468d5f4bc61620cd27fd8bb00847830385448e59407.exe
"C:\Users\Admin\AppData\Local\Temp\33d8ce2d4740dbc2544a1468d5f4bc61620cd27fd8bb00847830385448e59407.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1100
- C:\Users\Admin\AppData\Local\Temp\is-PKI0K.tmp\is-7G45P.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-PKI0K.tmp\is-7G45P.tmp" /SL4 $8022A "C:\Users\Admin\AppData\Local\Temp\33d8ce2d4740dbc2544a1468d5f4bc61620cd27fd8bb00847830385448e59407.exe" 1053604 52224
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4640
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" helpmsg 4
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:648
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 4
      4⤵
      PID:3236
- - C:\Program Files (x86)\RL Previewer\previewer.exe
    "C:\Program Files (x86)\RL Previewer\previewer.exe" -i
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:1284
- - C:\Program Files (x86)\RL Previewer\previewer.exe
    "C:\Program Files (x86)\RL Previewer\previewer.exe" -s
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:4392

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\RL Previewer\previewer.exe

Filesize
1.5MB

MD5
03942ef3cb2934299da6e3bf4f5fd317

SHA1
31f1d7e22479144c6c6da7c97572cad6b239ff12

SHA256
087f81eb0337b3b1facd22417a701278c566f63018344de7355f064c7fe93fde

SHA512
3b58c32e2136be901c15834d030bc65d8dee98279948e1731982aaaba6b81d2cdee73603a8e977925b3a7c830dcb821e220dd1b839e48efe16d4729cee7e9626

Download Submit
C:\Program Files (x86)\RL Previewer\previewer.exe

Filesize
1.5MB

MD5
03942ef3cb2934299da6e3bf4f5fd317

SHA1
31f1d7e22479144c6c6da7c97572cad6b239ff12

SHA256
087f81eb0337b3b1facd22417a701278c566f63018344de7355f064c7fe93fde

SHA512
3b58c32e2136be901c15834d030bc65d8dee98279948e1731982aaaba6b81d2cdee73603a8e977925b3a7c830dcb821e220dd1b839e48efe16d4729cee7e9626

Download Submit
C:\Program Files (x86)\RL Previewer\previewer.exe

Filesize
1.5MB

MD5
03942ef3cb2934299da6e3bf4f5fd317

SHA1
31f1d7e22479144c6c6da7c97572cad6b239ff12

SHA256
087f81eb0337b3b1facd22417a701278c566f63018344de7355f064c7fe93fde

SHA512
3b58c32e2136be901c15834d030bc65d8dee98279948e1731982aaaba6b81d2cdee73603a8e977925b3a7c830dcb821e220dd1b839e48efe16d4729cee7e9626

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-PKI0K.tmp\is-7G45P.tmp

Filesize
643KB

MD5
039dbe6f20c290a67f097d98995bee88

SHA1
851c1737b8cb8ec200d340d8e396f1d3e274e21c

SHA256
949a69347b46cd5e519249028e85b7720752dac0a5750c50c6ef564715a850a7

SHA512
d7f4e25ce52ae765bff4e1b5dde778082d63516c6ba16219a61a691ea52c8b82e48c79b02dd8420ff2ca9438f8244936bfa3272f5e2f170dadbbfb732904c60d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-PKI0K.tmp\is-7G45P.tmp

Filesize
643KB

MD5
039dbe6f20c290a67f097d98995bee88

SHA1
851c1737b8cb8ec200d340d8e396f1d3e274e21c

SHA256
949a69347b46cd5e519249028e85b7720752dac0a5750c50c6ef564715a850a7

SHA512
d7f4e25ce52ae765bff4e1b5dde778082d63516c6ba16219a61a691ea52c8b82e48c79b02dd8420ff2ca9438f8244936bfa3272f5e2f170dadbbfb732904c60d

Download Submit
\Users\Admin\AppData\Local\Temp\is-IU2F0.tmp\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-IU2F0.tmp\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
\Users\Admin\AppData\Local\Temp\is-IU2F0.tmp\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
memory/1100-1-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/1100-43-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/1284-35-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/1284-34-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/1284-38-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/1284-39-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/4392-66-0x0000000000690000-0x00000000006D9000-memory.dmp

Filesize
292KB

Download
memory/4392-65-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/4392-93-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/4392-89-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/4392-50-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/4392-53-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/4392-56-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/4392-59-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/4392-62-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/4392-42-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/4392-86-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/4392-67-0x0000000000690000-0x00000000006D9000-memory.dmp

Filesize
292KB

Download
memory/4392-73-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/4392-74-0x0000000000690000-0x00000000006D9000-memory.dmp

Filesize
292KB

Download
memory/4392-77-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/4392-80-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/4392-83-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/4640-7-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/4640-46-0x0000000000400000-0x00000000004CF000-memory.dmp

Filesize
828KB

Download
memory/4640-44-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download

Analysis

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