socks5systemz | a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b

General

Target

a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.exe
Size

5.8MB
MD5

d942363324fda86c7a86e56c7204c6e6
SHA1

cc6a3a7f1d7630ac316cd8275f173bf789d7f6e3
SHA256

a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b
SHA512

733386023c8ccffcd6422ccee2debc15c2e636a499217040b7abb7680def95af57cb502bb97d073d335b558495fed0ef19e83a683293af8a4094ebfbd1666fab
SSDEEP

98304:PX4rP/aUDnMxwswoizALSGzthiHTdSEOmG+dQhpZsvnXutGkSt4snAyazx1gs:vmyUxswb9YidS5mG+d6ZYLtVAyav

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2704-97-0x0000000002BA0000-0x0000000002C42000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Socks5systemz family
socks5systemz

Executes dropped EXE 2 IoCs

pid	Process
816	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.tmp
2704	avidenta364.exe

Loads dropped DLL 4 IoCs

pid	Process
2148	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.exe
816	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.tmp
816	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.tmp
2704	avidenta364.exe

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	141.98.234.31

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

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	avidenta364.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
816	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.tmp
816	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
816	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.tmp

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2148 wrote to memory of 816	2148	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.exe	30
PID 2148 wrote to memory of 816	2148	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.exe	30
PID 2148 wrote to memory of 816	2148	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.exe	30
PID 2148 wrote to memory of 816	2148	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.exe	30
PID 2148 wrote to memory of 816	2148	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.exe	30
PID 2148 wrote to memory of 816	2148	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.exe	30
PID 2148 wrote to memory of 816	2148	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.exe	30
PID 816 wrote to memory of 2408	816	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.tmp	31
PID 816 wrote to memory of 2408	816	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.tmp	31
PID 816 wrote to memory of 2408	816	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.tmp	31
PID 816 wrote to memory of 2408	816	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.tmp	31
PID 816 wrote to memory of 2704	816	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.tmp	33
PID 816 wrote to memory of 2704	816	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.tmp	33
PID 816 wrote to memory of 2704	816	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.tmp	33
PID 816 wrote to memory of 2704	816	a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.tmp	33
PID 2408 wrote to memory of 2828	2408	net.exe	34
PID 2408 wrote to memory of 2828	2408	net.exe	34
PID 2408 wrote to memory of 2828	2408	net.exe	34
PID 2408 wrote to memory of 2828	2408	net.exe	34

C:\Users\Admin\AppData\Local\Temp\a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.exe
"C:\Users\Admin\AppData\Local\Temp\a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Users\Admin\AppData\Local\Temp\is-A4SMA.tmp\a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-A4SMA.tmp\a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.tmp" /SL5="$30146,5401382,721408,C:\Users\Admin\AppData\Local\Temp\a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:816
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" pause avidenta_11135
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2408
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause avidenta_11135
      4⤵
      System Location Discovery: System Language Discovery
      PID:2828
- - C:\Users\Admin\AppData\Local\Avidenta 1.3.3\avidenta364.exe
    "C:\Users\Admin\AppData\Local\Avidenta 1.3.3\avidenta364.exe" -i
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:2704

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 Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\is-A4SMA.tmp\a52dac277304388cb396e23a75e6395850ea7cbdbe71e77868e2a46f996aa03b.tmp

Filesize
2.4MB

MD5
c9f64d28d917757a62853923c59e45b9

SHA1
6b997305f9aa7e31dcb2b1d539d2721c9c8c7cac

SHA256
da48d8e291877e1eec42110581817d9f1adfccb456c40d59ae504e8083bcbe4c

SHA512
5a0ea289b757a7f93d7c0b733638fda41ddc0ff743b16be173abd4b66a63402dbd1d13d90c47f1ab40aebcff6a6b5da2c9db33515b4bbfcf46a10222be3725cd

Download Submit
\Users\Admin\AppData\Local\Avidenta 1.3.3\avidenta364.exe

Filesize
3.3MB

MD5
4837af8f6dd7a3c3129f858163cd0c23

SHA1
0cf3aca7bc5ecbc119362d3d79a4c9790baaaa07

SHA256
e056496dbfe42073ea713f80560352eb5f654b7bcf6b20777ff408c9b5ce70c0

SHA512
23c8a38c5ca93350c1bb0cbe82e74e89cb4385b986184f9f4b0e9cf284e6ee4e136305d8dbe783df35c6a1fb4eed04c952da6e446dc8f58f773163d8a9ec09a8

Download Submit
\Users\Admin\AppData\Local\Avidenta 1.3.3\sqlite3.dll

Filesize
630KB

MD5
e477a96c8f2b18d6b5c27bde49c990bf

SHA1
e980c9bf41330d1e5bd04556db4646a0210f7409

SHA256
16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

SHA512
335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

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

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/816-72-0x0000000000400000-0x0000000000679000-memory.dmp

Filesize
2.5MB

Download
memory/816-12-0x0000000000400000-0x0000000000679000-memory.dmp

Filesize
2.5MB

Download
memory/816-66-0x0000000003BD0000-0x0000000003F1B000-memory.dmp

Filesize
3.3MB

Download
memory/2148-0-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/2148-2-0x0000000000401000-0x00000000004A9000-memory.dmp

Filesize
672KB

Download
memory/2148-73-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/2704-79-0x0000000000400000-0x000000000074B000-memory.dmp

Filesize
3.3MB

Download
memory/2704-97-0x0000000002BA0000-0x0000000002C42000-memory.dmp

Filesize
648KB

Download
memory/2704-75-0x0000000000400000-0x000000000074B000-memory.dmp

Filesize
3.3MB

Download
memory/2704-68-0x0000000000400000-0x000000000074B000-memory.dmp

Filesize
3.3MB

Download
memory/2704-67-0x0000000000400000-0x000000000074B000-memory.dmp

Filesize
3.3MB

Download
memory/2704-83-0x0000000000400000-0x000000000074B000-memory.dmp

Filesize
3.3MB

Download
memory/2704-87-0x0000000000400000-0x000000000074B000-memory.dmp

Filesize
3.3MB

Download
memory/2704-91-0x0000000000400000-0x000000000074B000-memory.dmp

Filesize
3.3MB

Download
memory/2704-95-0x0000000000400000-0x000000000074B000-memory.dmp

Filesize
3.3MB

Download
memory/2704-76-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/2704-103-0x0000000000400000-0x000000000074B000-memory.dmp

Filesize
3.3MB

Download
memory/2704-107-0x0000000000400000-0x000000000074B000-memory.dmp

Filesize
3.3MB

Download
memory/2704-111-0x0000000000400000-0x000000000074B000-memory.dmp

Filesize
3.3MB

Download
memory/2704-115-0x0000000000400000-0x000000000074B000-memory.dmp

Filesize
3.3MB

Download
memory/2704-119-0x0000000000400000-0x000000000074B000-memory.dmp

Filesize
3.3MB

Download
memory/2704-123-0x0000000000400000-0x000000000074B000-memory.dmp

Filesize
3.3MB

Download
memory/2704-128-0x0000000000400000-0x000000000074B000-memory.dmp

Filesize
3.3MB

Download
memory/2704-132-0x0000000000400000-0x000000000074B000-memory.dmp

Filesize
3.3MB

Download

Analysis

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